Every man with a hobby or particular skill likes to publish a self-serving, single-criteria test of manhood: whittling, hunting, tiling a bathroom, fishing, purifying rain water, rebuilding a Cleveland V8, growing hydrangeas, surviving a Turkish prison after a bad rap for hashish, brewing beer, operating a sailboat, bedding a strumpet, making an adequate gin & tonic, constructing your own lightsaber, &c.
Now I say unto you that you will not truly be a
man mature adult unless you can generate your own DX coding stickers decals so that you can use underwhelming offbeat slow-speed film in your way-too-expensive point-and-shoot compact camera. Or get your camera to read your Tri-X as 320 because your technique is that good, your meter is that accurate, and that 1/3 stop makes a huge difference. And because you’re too lazy to turn that ISO dial!
I was actually doing the former – trying to use 50-speed film in a Canon Sure Shot (Prima) 120 Caption, a phenomenal camera that oddly defaults to ISO 25 when it can’t read a DX code (the reliable plastic bulk loading cassettes are uncoded…). You just can’t overexpose Pan F Plus… and try using a P/S zoom at EI 25… and what better excuse to trash my home office with bits of paper and foil? And naturally, a child in the household had stolen the only X-acto knife with a good blade, so I wasn’t going to do it by hand.
Commercially-available DX labels are limited in ISO choices, and they are also surprisingly expensive. Also, film photography these days is about reinventing the wheel. You can make decals, in a completely overwrought and overly-technological way using a machine that might already be in your household: the pattern cutter (Cricut, Brother Scan ‘n’ Cut, etc.).* We have the Brother,** so you may need to adjust your technique slightly for the Cricut. A Brother has two funtions: drawing with a marker and cutting with a blade. We will use both techniques.
*I am fully aware that this is most likely to be in your household if you already have a spouse, and that the only way to get a spouse might be to perfect your DX decal skills, which is hard to do without a pattern cutter. Such a conundrum! Better brush up on your beer-brewing.
** The Brother is way more goth than the Cricut.
You will need: your cutter, its pen and knife attachments, a roll of commercial film for reference, a DX decoding chart (available online), some half-page (Ebay) labels, and a roll of self-adhesive metal foil (0.05mm / 0.002 inches or thicker). It can be any metal you want (aluminum, stainless, brass, copper), as long as it is conductive.
The drawn outer box. On your design software, make a box that is 33x15mm. Designate that “draw.” This will contain two rows of six boxes, each 5.5mm wide and 7.5mm high. Make these 12 boxes and position them in a grid. Looking at your DX chart, color the boxes you want to be insulators (i.e., black and not silver). Fill color doesn’t matter. These should be “draw” shapes.
Your DX code. Look at the decoder and figure out what film speed you want. That’s the first row. For the second, row, number of exposures, I would recommend 36 (so the 2nd and 3rd spots insulated). If your camera reads exposure count, it will then rewind neatly so you have 6 strips of 6.
Negative space (conductors). Now change all of the little white boxes (the ones you did not color in) to “cut.” Where they are touching, merge them. In the ISO 50 example in the pictures up top, these will result in one L shape and one T shape.
Optionally, you can also delete the color-filled boxes because they were only there for reference. Your finished label can use white paper as an insulator. But it also looks cool if you leave the solid boxes. That’s what I did for the pictures.
You can also add something to the top or bottom of your big box to remind you which direction the decal points. I make an extra 3mm box that I point at the 35mm cartridge opening. I suppose you could make a really long one if you wanted to.
Clone your decals. Now draw a selection box around your DX decal design and “group” it using the design software. This will allow you to clone and arrange copies without having any of the elements get out of place. I made two rows of 5, spaced 30mm top of one to top of the next, 50mm from left edge to left edge.
Draw the decals. Move the design file to your cutter. Insert a sheet of label paper. Run a “draw” pass. This will sketch the outline of the DX decal, and if you left them in place, draw in and fill the insulator squares. If not, you will just see the outer 33 x 15mm rectangles.
Cut the codes. Now run the “cut” pass. This is where the magic happens. Do it with a “kiss cut,” or the type that does not cut through the lining of adhesive material. When the cut pass is done, you can pull out (I think they call it “weed”) = the shapes corresponding to the “conductors” – so I pulled a T and an L. You will see the shiny label backing through the holes.
Cut out all the decals as a group. Now cut around all of your labels as a group (I recommend scissors, but you could automate this). This will give things structural integrity because you will next peel them all off in one piece and set them on the top side of your metal foil (your “insulators” should all be attached at a minimum of one edge to the “frame”). From there, you can cut your individual labels as closely as you want.
Trim and apply. Now your metal foil holds everything together. Peel off its backing, position the decals on your cassettes using a commercial cassette for reference, and validate using a DX camera, preferably one that shows you the selected ISO. On a Nikon, for example, you can put the cassette in, close the back door, and if your ISO is on DX, all you need to do to read the cartridge is hold down the ISO button. Do this for each cassette.
You can obviously re-use your design file to make more – and it’s pretty easy to change ISOs in your design file. Just keep a master file in which all 12 of the little boxes are still separate.
You’ve made it! Years from now, when you have 2.5 children, a happy domestic situation, a great job, and a really cool electric car or carbon fiber bike, you’ll know that all this work paid off. If we don’t get to talk then, you’re welcome.
Sometimes you see a photo accessory and wonder, “where the hell were you all this time?” And the answer is, “it was too easy, so Sony canned it.” The GPS-CS3KA (“GPSman?”) is a smallish box, maybe two-thirds the size of a Metz 26AF flash. It only really does two things: (1) keeping a track log from GPS signals it receives and (2) writing them to the JPGs on your SD card.
A reasonable solution to a stupidly common problem?
Wait? What? Most GPS solutions for cameras have been pretty terrible. For reasons that are unclear (perhaps metal covers), high-end cameras have not had built-in GPS. In fact, few cameras period have it – aside from the ubiquitous iPhone or Android. This leaves you with some suboptimal options:
- Keep a tracklog with a separate device (GPS watch, tracklogger, battery-intensive phone app) and marry the coordinates to the files in Lightroom or Exiftool.
- Use a separate device with Bluetooth to feed coordinates into your camera’s remote port (a la Red Hen).
- Use a clunky GPS add-on that takes up both your remote terminal and hot shoe (looking at you, Canon and Nikon).
- Try to graft an NMEA cable to your DSLR’s accessory port.
- Use a clunky grip with GPS built-in (Leica Multifunction Grip M)
- Stick a GPS in some other accessory, like an EVF that you might otherwise not user (Leica EVF-3).
Sony quite possibly solved this problem by accident with the GPS-CS3KA, which takes a reading every 15 seconds into 128mb of memory – and when you insert an SD card will look for the closest matches and tag your JPGs in batches of 60. I say “by accident” because operation is far to simple for a Sony (at least compared to a Bravia TV). There are only three options:
- GPS: display GPS screen – hitting enter gives you different permutations of time and GPS coordinates.
- Match: automatically counts the number of files to be tagged and only lets you start or cancel. Matching stops the GPS reception.
- Tools: set the time zone, undo-ability, and erase internal memory.
How does it work?
- Stick a single AA battery in one slot.
- Set your correct GPS plus or minus time zone (as I write this, -400 for Eastern).
- Turn on the machine.
- Shoot a bunch of pictures.
- Put your SD card in the slot.
- Use the “matching” function to assign locations (use “undo” to clear all of the data you just wrote).
- Repeat as many times as necessary in batches of 60 files.
Note that when you initiate a card matching session, you may lose the GPS signal – but then again, you won’t be shooting pictures while your card is in the device.
GPS performance is actually quite good. Cold start will grab coordinates within about a minute; on a warm start, about 10 seconds. Your initial startup will be minutes as the device updates its GPS satellites. The device apparently can read a signal in many indoor settings, which is neat. Or scary.
My performance tests on accuracy landed this within about 15 feet of where I was standing. It does read out in minutes and seconds too. For most purposes, it suffices to see degrees to know that it’s locked on.
Observed battery life with alkaline was about 12 hours. Not terrible, considering how much power this probably draws.
I did not test the Sony software, but I did note that connecting the USB cable does not bring this up as a drive with an easy-to-access GPX log.
Where does it work and not work?
I tried this a Sony A7rii and with cards up to 64gb. The results were better than expected for a device this old.
Cards that work: up to 32gb only, the faster the card, the better (realistically, that’s a Sandisk 95mb/sec card).
To be safe, I would recommend using SDFormat and not opening cards with files on a Mac before encoding. Macs tend to throw indexing files on disks that are invisible to the user but can hang up particularly primitive embedded devices (of which you should assume this is one).
Cards that don’t: 64gb and up; WiFi-enabled cards. I suspect that 64gb is outside of the ability of the device to read cards (even devices that read FAT32 sometimes cannot address an entire card). You get “matching error” as your only clue. As to WiFi, my best guess is that since it works for a couple of frames and then blanks, that the card sees that x files have been read and that it’s time to turn on the WiFi. The problem is that one AA battery doesn’t have enough power to allow that. In my testing, there has been no way to shut off the FlashAir’s desire to start transmitting (unlike EyeFi, which could be set to transmit only images that were write-protected).
Files that get encoded: the spot of bad news is that the current ARW raw format doesn’t get location data with the Sony GPS. But since the device will record location data onto almost any JPG, it will work equally well (or poorly) with many types of cameras.
Within the limits of a certain card size, and therefore speed, the Sony GPS does allow a relatively automated geotagging process for JPGs. Like Lex Luthor’s henchmen, it has “one job.” But unlike those people who never succeded at killing Superman, the Sony performs that job well.
Notably, you can generate tracking data usable with multiple cameras, since you can insert SD card after SD card and use the same body of GPS data to code files shot in the same time period. This is a bit more flexible than solutions that would have to be transferred from camera to camera (or just duplicated with good old cash). It does require than your cameras’ clocks be synchronized reasonably closely.
It does not solve the problem of writing geolocation data to RAW files (Lightroom, for example, simply ignores this data if you import both tthe RAW and the JPG), and no one will likely ever solve the mystery of why cameras don’t have inbuilt GPS. But it’s a lot better than trying to marry track logs and files by manual labor.
The Nikon Z7 is undoubtedly a quantum leap in Nikon’s camera evolution, essentially putting the best features of the Dxx series into a mirrorless body. Yet there is the inevitable complaint: “No dual card slot? Only one? No pro camera is like that!”
Pardon me, but plenty of pro cameras have been like that – and not just pro digital cameras in some benighted past (n.b., an era ending maybe 4 years ago). Consider the D2x and D700. Anyone want to call those “not pro” cameras? How about the flagships of the EOS fleet for a stretch?
In an era where film ruled the waves, it’s not like you could put two films into the same camera simultaneously for “backup.” And back then, pictures were scarcer and more valuable, and your chances of losing a shot due to a light leak, film defect, or development failure were astronomically high compared to anything that could befall a digital outfit.
So let’s move to digital. What is the measured malfunction rate of properly kept, brand-named CF, SD, or XQD cards? Hint: it’s astronomically low compared to the failure rate of the cameras that use them (SanDisk posts an MTBF of 1 million hours, or 114 years). Here are things that are far more likely to happen:
- Dying (which is all but guaranteed within the MTBF cited)
- Being killed in a car crash
- Being hit by lightning
- Finding a lost cousin on some genealogy site
- Winning Powerball
The threat of a bad flash card bringing down the system is simply not a real thing for most people. Dropping a camera, having a battery burn out, or suffering some physical mishap is far more likely. Even being in a car accident is more likely. And for that matter, why wouldn’t “any responsible pro” bring an extra car? An extra photographer?
I suspect that many of the people complaining about this issue — if not simply fronting to front — are semi-pros who scraped up every last dime to buy one really good camera to shoot wedding pictures. Fair enough. Maybe they had a bad experience with a counterfeit card once. Abused a good one. Ran one into the ground. It’s also possible to screw up the file system of a card by failing to respect buffers that are still clearing or repeatedly using without ever doing an in-camera format.
But this group is not positioned to speak for all pros (i.e., make the statement that “no pro would…”). Real pros in every field use redundancy – and it’s not limited to using two cards in the same camera (which does nothing if your camera is the single point of failure). Redundancy could include:
- Using smaller cards to reduce the “all eggs in one basket” effect. 32Gb is fine. Smaller media is one of the reasons that film was safe; 36 frames on a roll of film is small.
- Rotating between cards over the course of the shoot (the nice thing about EXIF is that Lightroom can combine shots from multiple cards into exactly the right order).
- Using two cameras and two cards, which means you will never be high and dry.
- Beaming your images in real time using wireless (a Toshiba Flashair is great for this, though there is no XQD version yet).
- Downloading one card to your laptop while shooting a second card.
When you consider the other options, thinking that two cards in a camera would get you off the hook seems a little odd, does it not?
Maybe the whole “multiple card slot” thing is a product of general societal economic insecurity. Or a “mine is bigger than yours” mindset. But any way you slice it, it doesn’t seem to make a lot of sense for most people.
An action finder can be really useful for situations where it is hard to look into the viewfinder – like when you are wearing a space helmet. Or oversized Italian sunglasses. This is a picture I took with my DA-20 on a recent vacation.
This article  came about because everything I have seen about accessory viewfinders seems to have been cut and pasted from manufacturers’ literature. This article will (hopefully) help you determine whether you should use one or more of these. Remember: Nikon sold one accessory finder for every 1,000 F-series bodies. Although this is a convenient excuse for why the F6 has a fixed prism, it also should tell you that most people learn to live with the standard pentaprism that came with their camera bodies.
Action Finders: DA-2, DA-20, DA-30
The action finders are all huge and heavy (so not for wimps), but they give you some flexibility – like not having your camera jammed in your face.
In an SLR system, eye relief and magnification are closely related concepts. The higher the eyepoint, the greater the distance the entire frame can bee seen from the eyepiece. The greater the eye relief, the lower the magnification. The Nikon action finders are designed around an eye relief of 61mm (2.5 inches); the magnification is 0.6x. Contrary to popular myth, an action finder does not produce a big, “TV-like” image. It simply lets you see the whole viewfinder from a little bit further back.
Can you use an action finder all the time? Yes and no. Because it lowers magnification, the action finder makes it a little more difficult to use telephoto lenses. If you are relying on focusing screen aids (such as split-image rangefinders, microprisms, etc.) or autofocus, the lower magnification won’t have much impact. If you use groundglass focusing, life gets a little harder.
Do you need the expensive rubber eyecup? Yes. Beware of all the action finders missing this useful part. Your eyeglasses are not in danger from the action finder eyepieces; rather, the rubber eyecup keeps your eye at roughly the right distance from the viewfinder.
Every viewfinder really has only one eyepoint: the eye position where the whole viewfinder is visible. Nikon’s high-eyepoint pentaprisms are designed to focus when eyeglasses are pressed up against the eyepiece.
This means that diopter correction is relatively simple: you just pick the correction lens (or setting on an F4, F5 or F6) that works in one position. You may notice that you use different viewfinder corrections for glasses and contact lenses with the same prescription; part of this is the difference in distance from the camera’s viewfinder system.
With an action finder, your eye could be anywhere in the range from right against the eyepiece to the magic 61mm from it. Although this does not seem like a very big range, your eye works very hard to see the focusing screen as the distance increases and diminishes – much the same way that a camera lens needs to extend or retract much more when it is focusing on a close object. The rubber eyecup keeps your eye at the “right” distance: the one where the average eye can focus comfortably. If you don’t use the eyecup and press your eye up to the finder, you might find your eyes a little bit fatigued after a while. Unfortunately, the usual solution for this problem is absent: the action finders have no built-in adjustment and there are no accessory diopters.
The F3 action finder (DA-2) meters the same way that the F3 standard one does – it doesn’t. On the F3, centerweighted ambient metering and centerweighted TTL flash are measured by a sensors in the camera body. The body of the finder is made of brass. The eyecup is rectangular and snaps on over a large rectangular plastic frame on the back.
The F4 action finder (DA-20) gives you a choice of centerweighted or spot metering via a switch on the side of the prism (like the DP-20). The DA-20 outer housing is plastic. It features a normal TTL hot shoe (no locking pin). The DA-20 has a similar eyecup to the one on the DA-2. The DA-2 provides an abbreviated viewfinder information display (the lower display is actually part of the DP-20, not the F4 itself)
|Exposure mode||Small window (left)||ADR window (center)||Focus ind.|
|P or P HI||“P” + auto-selected shutter speed||Minimum aperture of lens (or other aperture and “fEE” in left window)||Minimum aperture of lens (or other aperture and “fEE” in left window)|
|S||Auto-selected aperture||Minimum aperture of lens (or other aperture and “fEE” in left window)||Minimum aperture of lens (or other aperture and “fEE” in left window)|
|A||“A” + auto-selected shutter speed||Aperture set on lens||Minimum aperture of lens (or other aperture and “fEE” in left window)|
|M||Shutter speed + reading of how off from normal exposure (e.g. +2.0)||Aperture set on lens||Minimum aperture of lens (or other aperture and “fEE” in left window)|
One variation of the DA-20 (which I assume was made for underwater work – and which I stupidly returned to KEH) has a built-in illuminator for the lens aperture ring. It comes on whenever the meter is on, so watch your batteries.
The F5 action finder (DA-30) gives you matrix (not 3D or color), centerweighted or spot via a similar switch to the one on the DP-30 (standard F5 finder). Its body is made from a crinkle-painted l.ght alloy. It has a locking hot shoe. Given its functionality, I suspect the DA-30 shares its electronics with the DP-20 (the F4’s standard finder). The DA-20 also has a similar eyecup to the one on the DA-2. You get all of the same viewfinder information that you get with with the DP-30 (standard F5) prism.
Magnifying Finders: DW-4, DW-21, DW-31
Magnifying finders are fun. They eliminate the light loss from the pentaprism and give you a magnified (6x) view of the whole focusing screen. Distortion is very low. These have very low eyepoints and are designed to be used without eyeglasses (precisely why the Nikon magnifying finders have correction from +3 to -5 diopters built in. Once you press your eye all the way in, it’s a revelation. These have three (by my count) multicoated elements.
Magnifying finders are very useful with standard groundglass focusing (D-screen) and with astrophotography (M-screen). You can actually use them for anything with the sole exception of (1) situations where you need to keep the camera high (at eye level) and (2) situations where you lose track of left-to-right movement. The latter is related to the fact that all magnifying finders reverse the view left to right.
The DW-4 (F3) gives you centerweighted ambient and TTL flash metering. The DW-21 (F4) and DW-31 (F5) give you spotmetering for ambient and for flash. The F4 and F5 magnifying finders require the oddball SC-24 TTL cord, which plugs into an eight pin connector on the back of the finder. I am not sure why the first flash needs eight pins, since the hot shoe only has five pins (three dedicated, one hot shoe contact, one shoe). The SC-24 terminates in a standard Nikon TTL hot shoe.
Magnifying finders (and waist-level finders) seriously impede taking vertical shots.
Waistlevel Finders: DW-3, DW-20, DW-30
First it killed the Rolleiflex. Now it’s killing me. 35mm SLRs started with this type of finder; thank heavens it didn’t survive in the mainstream. The pentaprism displaced the waist-level finder – and the fact that a pentaprism shows everything correctly, right-side up and correct left-to-right, and not brightness, carried the day.
Today, the waistlevel finder has only three real uses: shooting above crowds, shooting from low angles, and shooting on a copystand. The DW-3 (F3), DW-20 (F4) and DW-30 (F5) are essentially the same thing: just a popup hood through which you look at the top of the naked focusing screen from a foot or more away. This makes manual focusing difficult and pretty much defeats any focusing aid in your focusing screen. Things are better with the autofocus cameras.
Each has a small 5x magnifier that provides a small, highly distorted view of the center of the focusing screen. While this is sufficient for copy (and some macro) work, it is pretty unpleasant for general use. This is no different from a standard Rolleiflex TLR viewfinder. The only reason people tolerated it on Rolleis was that in the olden days, medium format pentaprisms were so dark as to be useless.
Metering and TTL flash are similar to the magnifying finders. The F4 and F5 versions use the same TTL connectors that the magnifying finders do.
The principal virtue of the waist-level finder is that it is cheap, simple, compact, and lets you do a couple of unique things. If you don’t do those things, skip this type of finder.
Life has many existential questions and then some simple annoyances: why is the built-in WiFi in so many cameras so terrible? My Sony a6300 requires QR codes, wireless connections, and clunky built-in applications (as well has having the even more kludgy Sony PlayMemories application on the receiving device). Sometimes the simplest solution is not proprietary, and that is where we come to wireless SD (actually SDXC) cards.
Eyefi was a Finnish company that pioneered the idea of the wifi-enabled SD card. The idea was to make a small card that had a short-range 802.11 connection that could interface to a computer. Before long, the focus became transmitting to handheld devices.
In theory, all wireless cards count on the tolerance of a camera for staying powered up until disk operations are finished. In practical terms, this means that the wifi component in the card is activated by reading or writing a certain amount of data to the card, and the camera does not go to sleep until the transmission is complete (or some number of minutes passes, and the camera says “enough is enough!”).
Eyefi was not a tremendously easy system to set up on a handheld because it installs a WiFi profile (ID and password). This required you to enter a code on the back of the box into the handheld application, have your phone install the profile, go to WiFi settings, connect to the Eyefi card (assuming it is powered on) and then activate the Eyefi Mobi application.
From there, and assuming you were out in the wild, and your handheld could not see any other networks to which it could auto-connect, it would automatically connect to the Eyefi card. You would have to launch the Eyefi app to get transfers to start.
In general, the Eyefi setup worked (and works), except for a few caveats:
- It is difficult to reconfigure the cards for a new device if you lose the activation code, and it is not straightforward to recover them (you used to have to email Eyefi customer service).
- The configuration on the pro cards (transmit raw files and video or neither) required work with the hellishly ungainly Eyefi desktop application, which was a solution looking for a problem (if you are at your computer, why would you need to wirelessly transmit data to it?)
- Eyefi cards were (and are) pretty hard on camera batteries.
- Eyefi cards never got fast enough for intolerant cameras like Leica Digital Ms, especially the Typ 240 and its siblings, which really don’t like cards that can’t do at least 60mb/sec write speed (which generally means a 90mb/sec read speed – what they show on the box as the “speed”).
The Eyefi Mobi and Mobi Pro cards were a bit easier. The orange Mobi only transmits JPGs (you need to plug it into an SD reader to get RAW), and the black Mobi Pro would transmit both. But the speed still maxed out at Class 10, still not fast enough for a Leica, where sometimes they work, sometimes they don’t, and when they don’t, they lock up the camera until you remove the battery.
Eyefi’s reorg, Toshiba, and Keenai
The Eyefi situation, oddly, changed for the better with the reorganization of the company. The technology end (the patents) went to Toshiba. Keenai took over the software end and designed a (free) mobile application that far more reliably connected to the card and downloaded pictures far faster. While on paper, the deal between the companies was cross-licensing, the reality is that Eyefi cards are out of print.
Toshiba took over with its FlashAir series where Eyefi left off. True to Japanese corporate form, it put out its own clunky (and frankly indecipherable) handheld application. FlashAir. To its credit, the application allows you to see thumbnails (JPG and pink boxes for RAW) that allow you to selectively pull (as opposed to having the card push) files. This avoids the usual wait for the good shots while the card pushes all of your bloopers to your handheld.
The FlashAir W-04 (the current model, for some reason only available in Asia – in the U.S., you get the W-03 – but you can buy the W-04 all day on Ebay…) is in many ways better than the Eyefi Mobi Pro.
First, it skips the activation codes and profiles and lets you just punch in an 8-digit password (which you can change via the handheld app) when you connect to its wireless signal. I would not recommend changing this password because the risk of someone in your immediate proximity stealing your images is far smaller than the risk of forgetting the password and bricking the card.
Second, on Keenai, it is zero-configuration. It sees the phone is connected to a FlashAir card, and then it goes to town downloading everything (JPG and RAW). I think the assumption is that your phone will only be connected to one card at a time.
Third, the Toshiba cards seem to eat batteries less, although the effective range seems shorter. I am still testing this, but that kind of tradeoff would not at all be surprising.
Finally, the W-04 transfers about twice as fast as the Eyefi over WiFi, and its card write speed (UHS-3, which I measure at 63.3Mb/sec write speed) is high enough even to be reliable with the finicky Leica Ms. This actually makes them useful even when you don’t need WiFi connectivity. Speeds (as tested by me through the iMac 5K’s built-in card reader)
- Flashair W-04 (64mb/sec write, 88mb/sec read)
- Eyefi Mobi Pro 32 (17mb/sec write, 19 mb/sec read)
- Eyefi Mobi 32 (18mb/sec write, 19mb/sec read)
- For reference, a Samsung Pro non wireless card (rated 80/90) runs at 64/88.
…so as you can see, “Class 10” covers a lot of territory (basically 10mb/sec and up)
There are two last annoyances.
One is that iOS devices are hostile to the idea of strict priority lists for wireless. At home or work – where your handheld would be connected to a permanent network, you would want EyeFi or FlashAir cards to trump the local Wifi when they are active (since they are only active for shooting or file transfer). This is not a problem inherent to the cards themselves, but it makes using them less fun.
Second, wireless host programs like to store downloaded images in their own purgatory rather than dumping them all directly into your iOS photos storage. This means that you end up storing two copies of some (or all) pictures, eating into onboard storage. This actually is within the province of Keenai to fix.
With the maturation of wirelsss SD card card technology and of editing programs like Lightroom CC mobile, you can now actually get more done in more places. And yes, they even work with Sony cameras.
The Multifunction Handgrip M (14495), $895, is a depressing piece of hardware. It’s not the price or the alleged GPS slowness. It’s the depressing feeling that like a lot of things, the M camera reached its highest point of elaboration and now is on the path of decontenting that hit a lot of other types of consumer electronics.
Hello and goodbye. The story of this product is wrapped up with the M typ 240 (and its cousins the M-E 262 and Monochrom 246). The 240 was a watershed moment for Leica – the first time the M had actually become functional like other people’s cameras. It signaled a few firsts:
- Video. Not the best HD video ever, but with the new EVF(!) it was passable.
- Audio input. Plus it actually had a way to get audio into the camera! But no EVF and mic adapter at the same time. In every life, some rain must fall.
- A digital horizon that operated in 3 dimensions (so it could detect pitch and roll).
- A high capacity battery.
- A function button on the front that could trigger exposure compensation adjustments or viewfinder magnification.
How many of these features made it to the M10? The front button. Now let’s see where the Multifunction Handgrip takes you:
- GPS. Every want to auto-tag your photos with the location?
- SCA flash connector. Now you can connect to a flash via a metal plugged-cord or a standard PC outlet.
- AC connector. Now you can run your camera on video for the allotted 29 minutes at a time (before the auto shut off).
- USB port for tethered operation (likely why the AC connector is so important).
But then there came the M10, thin like a 90s shoulder pad. No more video. No more need-to-keep-it-level landscape photography (apparently…). Smaller batteries, as if the thrill of living had gone.
Weight? The 14495 adds surprisingly little weight to the M. That’s because everything but the baseplate part is plastic. Naturally, the light grip does not change the balance of the camera, so you need to use brute strength (and grip) to keep big lenses level.
Grip? The ergonomics of this are something that grow on you. At first, you feel like it could be a centimeter taller to accommodate your index finger. But wait – that’s the one you need to press the shutter. It doesn’t take long to adapt to this grip, and it greatly enhances the handling of the camera with huge lenses like the 75/1.4. Every little bit counts, and an M is pretty slippery, even with the little nub grip built into its case.
GPS? It works. Just put your camera in standby, and within a few minutes, it will get a fix. Once it’s running, it seems to be pretty accurate. A lot of people seem to complain that when it loses a signal, it continues to log its last known location. That’s actually beneficial when you go indoors (since you don’t want it to revert to a location in the center of the earth, for example).
“Near-field” communication. You always wanted this on a digital camera, but you didn’t want Android. Well, here you go. To get a wifi signal out of a card (like the Toshiba Flashair, which will be treated in a future installment), you basically need to have your handheld touching the top plate of the camera (which apparently is the most porous surface for radio waves.
Flash. Flash. Flash. So you want to know how well the 14498 SCA setup (another bazillion dollars) works? It consists of a bracket and an extension shoe. The idea of this product is to allow you to move the flash off camera both to enhance balance and to free up the hot shoe for an optical or electronic viewfinder.
The disappointing thing is that there is no vertical grip piece, meaning that your flash head is much closer to the lens axis in landscape mode than you might like. So this works better out of the box with taller flashes like the SF 58 or 64.
The weird thing is the SCA plug, which is both unusual and insanely well built. It probably requires 200 different machining operations. But like the EVF connector, it’s proprietary, meaning that you have exactly one choice for off-camera work. The exit of the cord near the body of the camera body seems weird at first, but after you use it a bit, you wonder why Nikon screwed up so badly with the SC hot-shoe adapters, which have huge cords that on an M camera either end up blocking the viewfinder or getting in your face, literally.
But the good thing with the 14498 is that you can get and use your favorite old Vivitar handgrip – because the extension shoe detaches from the bracket. And can be used without the bracket.
Flash operation is unremarkable (as it should be). You do not get a flash-ready indication in the EVF if you have it attached, and shot to shot lag time is not affected.
Conclusion. The Multifunction Grip M, if you can score one used for under $400, is a pretty good item. At that price, it’s not quite as outrageously expensive as list, and it helps tremendously with heavy lenses. As to the SCA set, it’s a tougher call, unless you can get one for under $200. Where the grip gives you a standard PC connector, you can use any handle-mount auto flash you want (such as a Metz 45 series). Flash may or may not be in your personal program, but I would remind you that the higher-end Leica flashes do high-speed synch very well.
Sony a6300 with Leica 35/1.4 Summilux-M ASPH and LM-EA7 II
Sony a6300: love to hate you
There may not be any point, six months after the fact, to writing anything about the Sony a6300 compact camera. Well, maybe there is. Sony APS-C cameras are something that Fuji fans love to hate. And what’s not to hate from their perspective? Sony doesn’t make cameras that look like old rangefinders or SLRs, Sony lords it over Fuji with sensors that are slightly ahead (Fujifilm buys sensors from Sony, so it is not going to get the pathbreaking product immediately), Sony lenses are supposed to be terrible, and despite all this, Sony still outsells Fuji by an order of magnitude. How could this be?
— Sony strengths relative to Fuji in the mirrorless arena
The two possible answers are video and AF performance. Video on the a6300 is nothing short of phenomenal: 4K, 120fps HD, and just about every type of video gamma geekery that you could want. The Multi-Interface Shoe allows for some interesting snap-on microphone options, including XLR and wireless. The worst thing anyone has said about the a6300’s video is that it has rolling shutter problems, and the answer to that is really, so what? It’s an artifact of any mirrorless camera when used for video. And since Fuji sources its sensors from Sony, you’re not going to do any better. In fact, no one outside the Fujisphere considers Fuji’s video in any way significant.
The focusing speed and accuracy a NEX/Alpha has always been somewhat incredible. Even back to the old NEX-5, Sony could make lenses that silently and smoothly achieve focus on faces. The a6300 with its kit lens posts some insanely fast times, and Sony’s claims about continuous focus tracking are largely true, at least as far as this author has been able to reproduce the right photographic, ahem, “needs.” In fast action, a camera with poor lenses but a responsive system does much better than a more ponderous camera/lens combination that misses the forest for the trees.
One thing that is clear from the dpreview.com tests is that with whatever mystery lenses the site used to test the X-Pro2 and A6300,* there is almost zero difference in image quality, anywhere on the frame.
*Never disclosing the lenses used is dpreview’s second-biggest failing. The first is retconning itself into the time before the internet and digital cameras existed. Sorry. That was a mistake. The first is allowing itself to be bought by Amazon. Then the second is retconning. Then the third is mystery lenses (apologies to Steve Martin).
The A6300 is fairly easy to handle. The grip section of the camera is substantial, and in general, it is easy to operate. No one, though, understands what the second command dial is doing on the top deck. It’s not comfortable to use with the camera at your eye. Controls are snappy and solid, as is the general build.
The A6300 has the latest OLED high-density electronic viewfinder that features a 2-axis level (pitch and roll) and more information display possibilities than you want to admit you want. Battery life is helpfully provided by percentage (and if there is one nice thing about Sony batteries, they are good communicators. Shooting does not black out in continuous mode. The EVF senses heat (infrared radiation); hence, its eye sensor does not react to glass-lensed glasses or sunglasses. If you don’t like the EVF, there is a big LCD on the back. Knock yourself out.
This is mostly unchanged since the a6000. The big thing is silent shooting, which uses a front and back electronic curtain (you can also choose electronic front or mechanical front). Silent shooting has two failure modes: first, in any situation with fast-moving objects, the progressive read of the sensor will cause typical “rolling shutter” artifacts. Second, dimmed LED lights (dimmed at the wall switch) flicker, even at full brightness, and can cause light banding in the finished frame (rolling shadow).
— Legacy lenses
One big note is that it is not particularly easy to engage viewfinder magnification on a shot-to-shot basis. You either have to learn to live with focus peaking or slow way down if you want to focus older SLR lenses, for example.
— Accessories and cutting corners
If you are accustomed to older NEX cameras, you will marvel at how Sony expects you to charge this camera with a USB connection to something else. The better solution is the Sony BC-TRW, which is a microscopic dual-voltage charger. It actually has four charging indicators (1-3 and off – meaning “fully charged.”). But yes, you still get a useless camera strap in the box.
An exit from the closed system
The problem with APS-C camera systems, whether Sony or Fuji makes them, is that they are closed, highly proprietary systems. You can’t stick a Fujinon on a Sony; you can’t get a Sony Zeiss lens onto an X-Pro2. Change systems? Get ready to pay the price when you sell your old system’s lenses.
There are two tired retorts:
- But the system has all the lenses you’ll ever need.
- Why don’t you just mount legacy lenses on an adapter?
The first argument is disposed of easily: what if you don’t like the one lens with your preferred angle of view and preferred maximum aperture? What if you don’t want to shell out for new lenses? What if you need the money for booze?
The second fails due to the kludge factor. Yes, it’s possible to mount other lenses on these bodies for use with cheap Chinese adapters and your old lenses. It’s also generally miserable. Both Fuji and Sony allow focus magnification, but Sony makes it difficult to use when a non-Sony lens is mounted. Both makes have focus peaking, but that’s not as definitive as you think. And although Fuji offers a phase-detect driven split-image manual focusing function, it’s not that much fun and not that fast to use.
The “out” provided by Sony was to enable phase-detect autofocus with third-party lenses. This enabled things like the TechArt LM-EA7 II adapter, which in theory allows the autofocusing of any M mount lens (or lens that can be adapted to M, provided it physically fits the adapter). If this works, it would be a game-changer, since it would bypass the usual foibles of adapted lenses (focus difficulty and inaccuracy of focus peaking being two big ones). Is this true?
The good, the bad, and the ugly with the LM-EA7 II
The adapter comes in a nice, foam-padded box and includes a NEX/E-mount body cap and rear lens cap. This is a nice touch, since people who bought the a6300 with a kit lens will have neither.
The good news is that with the sweet spot for Leica lenses: 35-50, the LM-EA7 works like a charm. The noise is a faint whirring, and the Sony phase-detect system fairly effortlessly computes and reaches the focus point (provided, of course, that your lens would ordinarily need 4.5mm or less of travel between infinity and minimum focusing distance).
- Focusing is through the lens, at shooting aperture. ***This forces the camera to automatically adjust for focus shift on fast lenses, again making the a6300 more accurate and repeatable than a Leica M body, which can only have accurate focus at one aperture.
- The camera plus adapter can focus on an off-center subject using (for example) wide AF. Face recognition works with this adapter, even though the adapter supports phase-detect only. ***This is significant because it means that the a6300 can more accurately focus fast Leica lenses on off-center subjects than a Leica body can.
- The camera plus adapter rarely misses, even off-center. In fact, the focus with things like the 50/1.5 ZM Sonnar (the modern version) is better than can be achieved with a rangefinder (naturally, due to focus shift).
- The adapter is serviceable with 75mm and longer lenses, provided that you pre-focus to somewhere at least near the expected focus point.
- The adapter, by virtue of its inbuilt extension, gives you slightly closer close focus with 35mm and shorter lenses.
- There is little or no color shift with adapted wides. Depends on the lens, but even the ZM Biogon 4.5 seemed to do ok.
- Flash works with the adapted lenses.
- The multi-shot vibration-reduction mode works (JPG only).
- The weight limit for the objective assembly (lens plus any adapters to M mount) is 750g. This is well beyond what you need for almost any Leica-mount lens and covers most DSLR prime lenses (if you go lens – to M adapter – to LM EA7 – to camera.
- The artistic effects, such as “Sad Clown with Single Tear Airbrushed onto Sweatshirt” still work with adapted lenses.
Now, what’s the catch? Well, there are seven.
- PDAF does not work for video, and the adapter does not do contrast-detect.
- Due to some clear limits in the Sony PDAF software (which is probably set up to look for big focusing changes), wide lenses (≤21mm) and lenses with maximum apertures of f/4 or smaller do not focus well. Granted, why do you need AF with these lenses?
- The motor part of the adapter hangs below the camera, making it hard to set the camera down. This is not entirely negative because it also makes a nice grip.
- Not all SLR mount to M mount adapters work. In general, you have to use the Leicaist versions because they taper enough to miss the motor unit. Konica AR is one of the couple that work with the adapter, and even then, it’s just the typical Chinese adapter with a relief milled into it to clear the autofocus adapter.
- Taking the camera’s aperture setting off f/2 or 2/8 tends to cause overexposure.
- The system for selecting and recording lens-specific metadata is confusing, pointless, and possibly both. Your best word may be to record everything as 15mm.
- It does take a toll on your battery.
Tips and tricks
- Disengaging AF. For some reason, there is a lot of internet kvetching about how it is difficult to disengage AF. This is probably based on old firmware that requires you to use Aperture Priority and turn to a small f/stop. It is actually very easy to disengage the AF temporarily. If you press and hold AE/AF-L on the a6300, the adapter will park at its “infinity” setting, the focus peaking will come on, and you can then focus manually. When you let go of the AE/AF-L button, the adapter goes back to normal AF operation (make sure the lens is set to infinity before you do this!).
- Quickly overriding face-detect or wide area AF. If you have the camera set to wide AF, and you press the center of the back wheel, it will go into spot AF, center area only. It will also automatically focus in that zone. There are many possible green boxes, so it’s not like spot AF – but it suffices in most situations where you need an arbitrary focus point.
- Minimum focusing distance. With a travel of 4.5mm, and the lens set to infinity, the adapter does not have extension enough to reach minimum focusing distance with any lens over 50mm. The slight exception appears to be some zooms, since their designs often obviate a direct relationship between focal length and extension while focusing. Minimum focusing distance, though, is all in your mind with the A6300, whose narrower angle of view causes you to back up to get the same field as with an FX/35mm camera.
- Prefocusing longer lenses. With long lenses the quickest and easiest way to get to a range where you can achieve focus is to press AE/AF-L (which parks the lens), turn focus peaking on, and focus to a point where focus is just behind the intended subject. Once you are there, let go of the AE/AF-L button to reactivate AF. Because you focused behind the subject, and because the adapter extends (thereby moving the focus point closer to the camera), you have now put your lens exactly in the right place. Needless to say, the longer the lens, the less frontward subject movement this technique will tolerate.
- Marking your close-focus point with long lenses. If you habitually shoot at 1-1.5m, find the right “parked” focus distance (see above) and then mark it on the focusing ring with a dot of colored paint.
Yes. In general the performance of this adapter depends on two major variables: lens weight and maximum aperture. The former degrades focusing speed; the latter, certainty of locked focus. As noted above, Hexanons were tested due to the availability of an ulterior SLR adapter (plus I had a bunch sitting around).
- 35mm f/1.4 Summilux-ASPH M (pre FLE)
- 40mm f/2 M-Rokkor
- 50mm f/1.1 MS-Sonnetar
- 50mm f/1.5 ZM C-Sonnar
- 50mm f/1.5 Jena Sonnar (prewar)
- 50mm f/2.0 M-Hexanon
- 50mm f/2.4L Hexanon
- 50mm f/2.8 Jena Sonnar (with Amedeo dual-mount Contact to Leica adapter)
- 50mm f/2 Jena Sonnar collapsible prewar
- 50mm f/2 Carl Zeiss (Opton) Sonnar, postwar
- 75mm f/1.4 Summilux-M (prefocus)
- 90mm f/2.8 M-Hexanon (prefocus)
- 10.5cm f/2.5 PC Nikkor (LTM)
- 40mm f/2 Hexanon (AR) (Konica mount via Leicaist adapter)
- 57mm f/1.2 Hexanon AR
- 35-70mm f/3.5-4.5 Zoom-Hexanon AR
- 85mm f/1.8 Hexanon AR
Kinda. For wide-angle, medium aperture lenses the adapter does not do so well because Sony’s phase-detect AF isn’t set up to split hairs.
- 24mm f/2.8 Hexanon AR
No? Here, the details are too small and/or the depth of field too much to get an easy lock (or sometimes, any lock) with the A6300 [edit note: this appears to be due to the camera’s having difficulty in deciding where the focus point should be – and even in its “spot” modes, the a6300 is picking a focus point]. The behavior on these is more deliberate focusing, almost as if the camera had switched into contrast-detect].
- 18mm f/4 ZM Distagon [too wide, too small an aperture]
- 21mm f/4.5 ZM Biogon [too wide, too small an aperture]
- 21-35mm f/3.4-4.0 M-Hexanon Dual [too wide, too small an aperture]
- 50mm f/1.5 Carl Zeiss (Opton) Sonnar [aberrations that Sony AF can’t understand?]
The Sony A6300 is a pretty formidable camera for video and not a slouch for stills provided either that your style does not exact ultra high performance from kit lenses or provided that you are willing to invest in better Sony or Sony/Zeiss glass.
The LM-EA7II may never be good for sports or high-intensity moving work, but it provides some fun with old lenses, or as much of it as you can take! It’s actually a bit irritating that I did not have an A7-series camera on hand to try it.
Among many other things that are fading away with film is the viewing filter. The Kodak Wratten #90 has long been the standard, though as a discontinued item, it is getting rare and expensive. The Zone VI mounted filter is long gone. If you get moving, you can still pick up the Tiffen Viewing Filter #1 ($40), which is a Wratten #90 laminated in glass and mounted in a phenomenally nice metal holder made in the U.S.A. (you cannot say so much for the velcro pouch). It is also only marginally more expensive than an unmounted #90.
If you read the casual descriptions, a “viewing filter” is something that “converts scenes to black and white.” That’s not exactly true; such a filter uses a dark color so overwhelming that your eye cannot easily discriminate the colors in a scene. The #1 filter, designed for black and white photography, is a very dark brown. It purportedly shows you a “normal” film response, which is something arbitrary (the look of a film really depends on your film and developer).Viewing filters come in other varieties and filter colors: they are (or were) also made for low- and high-speed cinema films and chroma key work.
But at a minimum, the device does show you where certain dark tones get muddy and where the highlights are. This in itself makes such a filter worthwhile – at least as a warning device. You can stick your black-and-white contrast filters in front of it (for example, a green filter to correct incandescent light), but it only works to a point – objects of complementary colors do indeed darken, but your eye quickly adjusts to acquire whatever color information it can, however weak.
As to the ready-made unit vs. unmounted gel issue, you might want the unmounted gel if your goal is to implant this filter into an existing accessory viewfinder. A Wratten gel is optically insignificant in terms of distortion, and because it is moisture-sensitive, it benefits from being inside a viewfinder unit (rather than the outside). A ready-made unit will be more durable and resistant to abuse, though it is just another thing to haul around (though you could attach it to the strap for your light meter).
Are alternatives available? Of course. You could go through a $2 Roscolux swatch book until you found something with a similar effect (though it might be a different color). Or you could find a set of old-school, bottle-brown sunglasses – that though not quite as dark as a #90, are quite helpful for visualizing black and white. And if you want to be truly perverse, you could set your iPhone to its black-and-white filter and use that as a visualizer.
# # # # #
Small camera supports represent the Kobayashi Maru scenario: an unwinnable conflict between competing considerations. For keeping a camera steady, particularly for video, a regular tripod starts large and gets larger – and the little “mini-pods” are useless (in many cases, the legs only spread to one position). In any event, the heads of most of these devices are not up to holding anything more than a flat point-and-shoot camera of the early 2000s.
The Manfrotto Pixi, which you can buy at Target as a $25 impulse (same price as Amazon before sales tax, so no need to showroom), is an interesting addition to the mix. Constructed mostly of ABS plastic with a pushbutton ball head (push to move the ball, release to lock), it is probably the sturdiest baby tripod currently made and definitely the best one ever sold at a convenience store. The design is very organic (anatomic?), particularly in white (it also comes in black and some two-tone combinations like red/black and pink/black).
Opened, it raises your camera approximately 5 inches and puts it on an equilateral leg spread of about 6 inches on a side. For small tripods, the added height is always negligible. The real thing is being able to change the angle of inclination of the camera (consider that you can put the camera and tripod on top of any box-like object and use the ball head to fine-tune the aim). For this, the Pixi has a real ball 25mm ball head, machined with grooves to be clamped. The platform is rubberized (as are the feet) and features the ubiquitous 1/4 x 20 tripod thread. If you have gaffer-taped the bottom of your M, it will make a good contact. For a Rolleiflex, on the other hand, you might want to make sure your 3/8 to 1/4 bushing is flat on the bottom of the camera. Heavier cameras with off-center sockets (like Leica M film cameras) may give awkward balance.
The push button on the Pixi’s ball head has been the subject of some discussion; it is stiff, and it should be stiff – since it is the only thing that keeps your camera from going nose-down on the table.
The weight capacity is another issue. The capacity is nominally 1kg (2.2 pounds). People have put much larger loads on this tripod, and it indeed will hold the weight. Dynamic load capacity, however, is not the same as static – and as such, the steadiness will diminish as the load (and stress on that load) increases (consider also wind and vibration in the environment). Understand that operating the controls on a Leica M with a moderately sized lens (which can hit 3 lbs) will cause deflection in the legs when you press the M[ovie] button. So 1kg really means 1kg* unless you are willing to wait for a little “settling” at the beginning and end of the work (and with telephotos, you may need to use a remote release – the Pixi documentation specifcally mentions 85mm as the limit). So in summary:
- Micro 4/3 or APS-C camera with small lens = Yes.
- Fuji GA645 series (815g) = Yes, but use the self-timer.
- DSLR = yes for small ones, hell no for pro and semi-pro models.
- Leica M (min. 680g) = Yes, but only with a small lens.
*Unless you are talking about the body, which is limited to 650g.
The static/dynamic weight thing afflicts real tripods too; one of the best tripods going is (was) the Linhof 2- or 3-section (Profi-Port-Stativ series), but that 5kg weight capacity means that heavy cameras need to be treated gingerly. In fact, Linhof’s own Super-Technika cameras were almost too heavy for these tripods (you would use a cable release, though, under most circumstances).
Closed, the Pixi operates as a handle. It is possible that most true mini tripods could function the same way; however, the legs fit together such to create a handle for over-the-head work or for video work (one would suppose, if you like the “steadicam” look). For overhead work, it helps to have a camera with an articulated screen that can be pointed down. It is unclear in use whether it actually helps steadiness for handheld video; the benefit seems to come mainly from the extended grip.
Is it worth it? Anything that costs less than your monthly cellular usage is probably not worth agonizing about. The Pixi is highly functional and attractive – and likely merits the 7 oz in your bag if you think it would help your work. And the color? White. Definitely white. Not for that Space Odyssey thing but rather because light-colored objects are harder to lose in camera bags.
As Vincent Vega once said, “That’s a pretty fucking good milkshake. I don’t know if it’s worth five dollars but it’s pretty f—ing good.”
There are only two reasons to buy a $15 lens cap (item plus shipping). One is that you are filthy rich. The other is that it’s a pretty f—ing good cap.
thousands hundreds of years that optical manufacturers have been making lenses, caps have been an afterthought. In the beginning, they were leather and promoted mold. Through the late 20th century, they were beautifully finished metal (or infrequently hard plastic) and predominantly relied on a friction fit to stay in place – and became useless as soon as they were dented or their felt linings became loose, grit-filled, or otherwise nasty. The 1980s brought the pinch cap; a thin plastic plate with spring-loaded tabs that engaged maybe 2 cm total of the circumference of the lens. This was easily knocked off and did not even effectively keep dust out. The 1990s version was the center-pinch variant, where the release mechanism could be operated even if a lens hood prevented the user from reaching the side-tabs. One almost has to wonder if the utter failure of lens cap design drove the UV-filter-as-protection craze, since it’s much easier to keep a filter screwed on than it is to keep a lens cap on.
To get back to the point, the Kaiser 206951 lens cap ($15 shipped at the usual places) is an excellent alternative. It is made of a semi-flexible plastic and basically stretches and suctions onto your lens. Size it 2mm larger than your filter size, and off you go. In testing so far on an X100, it fits snugly over a B+W F-Pro filter and creates an airtight seal that prevents pocket lint from getting in. Although it is not shown in the picture, many sizes of the 2069xx have lanyard loops so that they can be tied to strap rings or otherwise tethered so they don’t get away. This is a great example of a product that is well-designed, simple, and functional. Does it cost a little more than some Chinese pinch cap that you can buy for a buck, airmailed, because both the manufacture and shipping is heavily subsidized? Yes. But is it better? Absolutely.
Lens caps might seem like something simple and silly, but they fit into a category of product whose only value lies solely in its functionality. We would be lucky if every accessory were as well designed as that $15 Kaiser lens cap.