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  1. Re: Please Help Identify "Type Y" Caltar Lens

    I recently found one of those in the 240/6.8 form. As you found it is generally thought to be a Rodenstock Ysarex, and Ysarex appears to have been Rodenstock's trade name for Tessar-like lenses. The...
  2. Re: Need Advice Re : First ever visit to South Rim of GrandCanyon in January

    Hermit's rest road info: https://www.nps.gov/grca/learn/management/hermit.htm, says "improved in 2008."

    The Grand Canyon is great in winter, it will be cold at the rim, but you're from Toronto....
  3. Re: Suggestions for a low cost incident light meter

    The Gossen Luna Pro Digital is a nice, compact, light meter that can do incident. It uses 1xAA which is really convenient! The current version is called Sixtomat F2 and costs about $190 new, which is...
  4. Re: Travelers: New X-ray machines WILL ruin your film

    Lately, I have been getting flagged a lot when I carry food through a (US, TSA) security checkpoint. I often carry something like sandwiches or fruit through the checkpoint, and recently if it's in...
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    Re: Months-away tide prediction site or app?

    Go to https://tidesandcurrents.noaa.gov/tide_predictions.html
    Search for your place name, for example the Santa Cruz CA station is...
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    Re: FB Enlarging paper availability at B&H

    I haven't been there in years (I live on the other side of the country), but I'm sure there's something to look at. Although the art gallery scene in Manhattan has changed a lot, there would surely...
  7. Re: Travelers: New X-ray machines WILL ruin your film

    There's not been any evidence posted that it affects light meters. That was brought up in post #19, but the poster did not offer any reason for being concerned that the X-ray machine would affect...
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    Re: Lens board too thin

    What kind of lens board / how thick? Are you sure there is no anti-rotation pin sticking out of the back of the shutter? A Copal shutter will often fit on a fairly thin lens board, but sometimes...
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    Re: batteries for Calcu Light meter

    Search better or in a more directed fashion. https://www.butkus.org/chinon/flashes_meters/calcu-light/calcu-light.htm
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    Re: Focus Shift For Infra-Red

    You're burning film right now without knowing the focus shift.

    You need to set up a static subject - try a yardstick (meter stick if not US) laid out at say a 45 degree angle to the camera, with...
  11. Thread: Tripod Holes

    by reddesert
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    Re: Tripod Holes

    Sandstone is pretty fragile and friable. The boulder is probably in a lot of little pieces somewhere below the arch. Even granite typically breaks up during rockfall - that's where all the talus...
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    Re: Focus Shift For Infra-Red

    I don't have any direct experience with UV photography. Pretty much every lens is going to have a focus shift in the UV and IR, and the sense of the focus shift will usually be shorter focal length...
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    Re: Focus Shift For Infra-Red

    Every 35mm and medium format lens I have looked at with an IR focusing mark requires the lens to move further away from the film for the IR, ie the lens has a longer focal length in the IR. ...
  14. Re: Strategies in Cold - During and After Shoot

    You may like to read Kodak's tech publication on photography in arctic conditions: https://125px.com/docs/techpubs/kodak/c9.pdf , but keep in mind that it's mostly written for conditions much colder...
  15. Re: Linhof Technika 4x5 parts... Need 2 screws... Hard to get!

    What is the thread on that screw? You may be able to get a plain screw with the same threading but not the hole as a stock item. I don't know exactly how that fits together, but I'd be concerned...
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    Re: Lens Not Focusing, What is the Cause?

    Some lenses do have smaller rear groups than front groups. Pictures of the lens, and how it is mounted and the camera setup, would be helpful in diagnosing the problem.

    You can try measuring the...
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    Re: Single Travel

    That's a fat bear!

    I've hiked and backpacked in a number of places, and outside of campgrounds, only ever seen one bear (black bear), and he ran away as they often do. In the areas of California...
  18. Re: Gitzo 1371 3-way head has two locking knobs?

    Use the smaller knob to adjust the friction on the tilt movement of the head. Depending on the weight and balance of your camera, you should be able to adjust it so it moves smoothly without tipping...
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    Re: 4x5 pinhole help

    You have an f/280 pinhole. You want to get to about f/2000. This is about a factor of 7-8 in f-number, which is about 6 stops of exposure. You need two 3-stop ND filters, or something like a red...
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    Re: Gitzo matching legs and heads (R3)

    A 3 series tripod, which will be labeled "Studex." Gray hammertone legs most probably.

    I have a similar head but the smaller R. No. 2 and series 2 (Reporter) legs. Your head has longer handles on...
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    Re: Single Travel

    I spend some time outside in national parks/forest, hiking, trail running (not with an LF camera!), and so on. The things I worry most about and carry stuff to deal with are:
    - being caught out...
  22. Re: How different are Tessars from different companies?

    Dan answered this question but I will offer a slightly different phrasing. Lens design involves optimizing some parameters that the designer can control to satisfy a set of constraints. Parameters...
  23. Re: Camera confusion: Beginner Puzzles over Chamonix et al

    I'd suggest buying and reading a book like Steve Simmons's "Using the View Camera." This will go over some of the differences between camera types, the various movements and their effects, and the...
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    Re: Odd lensboard sizes

    The SK Grimes webpages on lensboards are a good reference - go to https://skgrimes.com/products/lens-boards, click on "Lens Boards" on the left, and then browse through the types.

    It matters a...
  25. Re: Focusing Issues with Nikkor T-ED 360/500/720 lens?

    The amount of motion of the circle of coverage is not the same as the motion of the focused image on the groundglass. The former is caused by the angle of the lens. The latter is caused by the...
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    Re: Photography log/database setup

    Suggest trying a spreadsheet app on your phone. Google Sheets would probably be the easiest to try: free, and meets your desire for hosting the database online with instant sync between entry and...
  27. Re: Where does one get custom ground glass from these days?

    I bought a pound of 600 grit silicon carbide for US$8 from a local lapidary and rock shop (as HMG is suggesting). That's enough grit to last a lifetime. Tried it for the first time recently, and it's...
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    Re: Minimal chem for 8x10 dev

    The datasheet that Pere posted the link to, says that the capacity of D-76 1:1 is per 1 liter: 2 8x10 sheets per liter in a tray, or 2 rolls of 135-36 or 120 in a small tank. Each roll has film area...
  29. Re: Need help with the first complex lens board I've ever seen

    I have an idea ... Look up information about the ICA / Zeiss Juwel.

    http://forum.mflenses.com/ica-zeiss-universal-juwel-queen-of-german-plate-cameras-t51144.html...
  30. Re: Need help with the first complex lens board I've ever seen

    Based on your measurement of 114mm and the picture, the gray board could be a Rittreck lensboard. I've never had one, but it looks similar to pictures, such as those in...
  31. Re: Need help with the first complex lens board I've ever seen

    You say you want to unscrew the lens from the retaining ring, but you also said that from the back, you can see there is no retaining ring. What is the lens screwed into, if anything? A picture of...
  32. Re: Brackets for multiple speedlights/flash units

    There are a number of different multiple flash brackets, some of them are designed to fire multiple speedlights into an umbrella, others to mount on a lightstand, or a 1/4"-20 thread. You can get an...
  33. Re: Seeking Clever Idea For My 8x10 Camera & Vintage Lenses

    Sliding a artboard mask into the filter holder to act as a shutter will be clumsier than the lens cap. Try using a hat as your shutter. A black fleece or felt hat works pretty well - for fleece,...
  34. Re: Removing a 21" Kodak Ektanon from a Prism

    Large front prisms were common on process camera lenses. For example see this Wollensak catalog: http://www.cameraeccentric.com/html/info/wollensak_2.html

    I think the main reason was to reverse...
  35. Re: Adams/Weston Exhibition @ Stanford University, CA

    New Mexico is part of the United States.
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    Re: Tripod part???

    It is a stud or spigot that goes on the top of a light stand. It's screwed or clamped in place and things (lights, etc) are screwed or clamped onto the top part. Here's one listed as "double ended...
  37. Re: Help: Seiko shutter hole diameter for lensboard fujinon 250 f/6.7

    I happened to find a Fujinon lens in one of these Seiko shutters that looks like a #1 but isn't, and I took some measurements, in the hope that it helps future perplexed people.

    The lens is a...
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    Re: () Robert Frank, dies at 94

    Interesting idea.
    I would guess not directly: I think a lot of Frank's impact was to bring a sort of subjectivity to work of a photo-journalistic style - rather than didactically telling a story, he...
  39. Re: Focusing range of Goerz Dagor 305mm 6.8 for portraits?

    If one uses an 8x10" camera to image a 16x20" subject, which is kind of like a tight head and shoulders composition, one is working at a reproduction ratio of 1:2. That means a lot of bellows...
  40. Re: Photodiox 4x5 to 35mm digital adaptor plate for stitching.

    I posted a thread about the adapter I made in the DIY forum, at https://www.largeformatphotography.info/forum/showthread.php?154154-DIY-4x5-Graflok-to-DSLR-adapter-(and-drawbacks) . That may give...
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