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  1. Re: Nikon Nikkor T ED 360mm f/8 Lens Copal 1 with my Tachihara 4x5??

    What is your Tachi's maximum extension? The 360 Nikkor T's flange-focal distance (extension required to focus at infinity) is 261 mm. The 270's is 188 mm.
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    Re: Do you get sentimental about your lenses?

    The 38/4.5 Biogon ex-AGI F.135 that Steve Grimes remounted for me is exactly the same lens as yours. Different mount, that's all. And not an LF lens. When shot on 2 1/4 x 3 1/4, I can see that it...
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    Re: No rangefinder

    Vaughan and ic, these old crocks have been messed with so much that there's no guarantee that the focusing scale in the bed is correct for the lens now fitted.

    OP, if it doesn't have a focusing...
  4. Re: Anyone have any experience with Komura lenses

    See "the list."
  5. Re: Anyone have any experience with Komura lenses

    No. Tokyo Optical = Horseman
  6. Re: Replacement ground glass for MPP MicroPress

    The MicroPress is a Pacemaker Speed Graphic made under license. Yours has a spring back. Measure the size of the recess that accepts the ground glass, then get one that fits. Contact vendors on,...
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    Re: Do you get sentimental about your lenses?

    Fair question. Consistently poor image quality regardless of careful focusing, camera support, shutter speed and aperture. Some of my crap lenses are in good condition so I blame the factory for...
  8. Re: Goerz Doppel-Anastigmat Series III No. 1 Question

    David, I just took a look at the pictures in this thread's first post. The flange, not the lens' trim ring, is engraved "Serie III No. 1 F=150 m/m". The flange and trim ring show the same serial #,...
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    Re: Do you get sentimental about your lenses?

    Yes, and I've had several.
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    Re: Do you get sentimental about your lenses?

    Sentimental? About a few, absolutely, but not because of the lenses themselves. Because of the personal relationships behind them.

    After reading the VM carefully, I decided that I wanted a...
  11. Re: Goerz Doppel-Anastigmat Series III No. 1 Question

    Hmm. Dagors and similar lenses are made up of two cells. Each cell is a cemented triplet. The cells are usually identical, i.e., the lens is symmetrical.

    Yes, people do mistaken claim that...
  12. Re: Goerz Doppel-Anastigmat Series III No. 1 Question

    Hmm. It is in what's called a deep mount, used with cameras that have focal plane shutters.

    Which camera did you mount it on? How did you try to focus it?

    I don't have the relevant tables for...
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    Re: Diaphragm placement

    It depends on the lens' design. Some lenses have the diaphragm in front of the glass, for example the meniscus lenses used in low-end Kodak folders. Some have the diaphragm behind the glasses, for...
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    Re: Wollensak Process lenses 20" f/10

    General principles (f/10 process lenses typically cover around 45 degrees) predict that it won't come close to covering 14x17.
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    Re: Help - Double Image/Ghosting on Graflex

    Hmm. Your camera should have first surface mirror. Silvered side faces the rear of the lens and ground glass. It may have been replaced by a second surface mirror, in which case you'll get a...
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    Re: Shutter Help! Xenotar 135mm 3.5

    Hmm. Shutters are made to fairly close tolerances. Compur #1, Copal #1 and Prontor Press #1 all have the same threading and tube lengths. Lens cells made to fit these shutters are also machined to...
  17. Re: graflex speed graphic 4x5 serial number 299799

    Check the serial number again. 299799 is in a block of serial numbers, 299342 - 300841 of 3 1/4 x 4 1/4 Speed Graphics issued 8/26/1941. The next block of 3x4 Speed Graphic s/ns was issued...
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    Re: Repro Claron APO II (320mm)

    It has to be a confection. There IS a 420/9 Repro Claron, it is a dialyte type.

    f/3.5 is very unlikely for a process lens. The ebay listing gives a serial number, 412. This isn't in the...
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    Re: Goerz red dot lens

    It is a process lens, doesn't "go with" anything in particular.

    Go to https://www.pacificrimcamera.com/rl/rlGoerzNYmisc.htm, click on the Red Dot Artar brochure (second for left).
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    Re: Why are we here?

    These days I'm here mainly to be helpful. That's why "the list.'"
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    Re: Hello from southwest Germany

    Martin, where in the southwest are you?
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    Re: Tick Season = Lyme Disease risk

    Don't forget Babesiosis.
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    Re: Mystery Kyvytar 240mm f/6.8 in Copal #1

    Hmm. I don't have the time to plow through this https://www.largeformatphotography.info/forum/showthread.php?10255-The-Computar-lens-and-ULF-coverage just now. Happy searching!
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    Re: Any Lenses for 14 X 36"?

    Hmm. Its been a while since anyone asked where to find a 2500/12.5 Apo-Saphir.
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    Re: Any Lenses for 14 X 36"?

    The normal focal length for the format is ~980 mm. 1000 mm elephotos and lenses for aerial cameras don't cover that much.

    Process lenses of that focal length typically cover <= 46 degrees. A...
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    Re: Exposure compensation for small apertures

    Thanks for asking again. You're concerned about shutter efficiency, which has been addressed well earlier in this discussion.
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    Re: Exposure compensation for small apertures

    No. If you're thinking of mechanical vignetting, it is usually caused by the lens' rear barrel. Stopping down diminishes it. To see the effect, take a lens in shutter, open the shutter, open the...
  28. Re: Fujinon 135 5.6 W - Aperture blade issue?

    It isn't a lens issue, it is a shutter issue. Which shutter is your lens in?

    I ask because some of my Copal #0 shutters stay wide open regardless of the aperture setting when the preview lever is...
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    Re: Rodenstock Sironar 150mm

    Interesting. Why do you believe this?
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    Re: Greetings from marseille !

    Try this https://www.google.com/search?as_q=agrandisseur+priox
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    Re: Close focussing distance

    Good point, Sharktooth. You didn't say it explicitly, but the minimum film plane to subject distance is 4 * focal length. Magnification is 1:1. At magnifications around 1:1, its good practice to...
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    Re: Close focussing distance

    Well, minimum focusing distance is easy. 1 focal length, measured from the lens' front (subject facing) node. Since a Symmar's nodes (all versions) are near the diaphragm, measure from the...
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    Re: 203mm Ektar Shutter Help Needed

    Those are the choices. None of the shutters is available new. One relatively cost-effective way to find, e.g., a relatively inexpensive Copal 1 might be to find a relatively unloved lens in one. ...
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    Re: Older vs newer Fujinon 90mm f8's

    OP, according to this: http://www.subclub.org/fujinon/byseries.htm there are three Fujinon NSW lenses, focal lengths 90, 105 and 125 mm, all 6/6. 6/6 means six elements in six groups, i.e., no...
  35. Re: The largest and/or heaviest 4x5" camera ever?

    Joe, don't shout!
  36. Posslibly of interest: a Canadian photographer's machinist

    http://usinage.ericconstantineau.com/index_en.html
  37. Re: Please Read The Book First

    Hmm. The approach suggested in post #15 above is one way to get better-focused searches on any site.

    Here's another way to use Google that allows even better control of the search. Use Google...
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    Re: Schneider-Kreuznach G-Claron 150mm f11

    1:some other number has often been used to indicate relative aperture. In this case, 1:11 means f/11.
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    Re: f/11 G-Claron?

    Anomalies prompt questions. I think that the question you quoted in post #31 above answered your question.
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    Re: Schneider-Kreuznach G-Claron 150mm f11

    There never was a 150/11 WA G-Claron. 210, 240 and 270. That's all.

    For the WA G-Claron brochure I referred to in post #27 above, go to...
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