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  1. Re: Color correction filters for transparency film?

    OP, you identified yourself as a physicist. Bad move.

    Do you remember the SSC that was never built? The magnets were to be powered by homopolar generators. Six of them, if I recall correctly. ...
  2. Re: Color correction filters for transparency film?

    OP, I think you mean color meter, not spectrophotometer.

    I've never met or known anyone who admitted to owning a color meter, let alone using one. But there are quite few on offer on eBay.
    ...
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    Re: Leaf Shutter High Speed

    Mike, I could be mistaken but I don't believe that a Supermatic opens and closes as fast -- in 0.000237079 seconds combined -- as your measurements show.
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    Re: Leaf Shutter High Speed

    Have you asked reversal film how well your leaf shutters' high speeds work?
  5. Re: Help with Speed Graphic ground glass/fresnel

    Neal, you are writing from general principles, not from Graflex Inc.'s practice. Please read the manuals.
  6. Re: Help with Speed Graphic ground glass/fresnel

    Neal, the ground glass' thickness is irrelevant. The image is formed on the ground surface, which should face the lens.

    Tbhe OP is somewhat cooked. Graflok backs made by Graflex Inc. for Graphic...
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    Re: Teach me about Lens Design

    I've already told you that you want to practice lens abuse and made practical suggestions that might get you what you want. Old, old fast (f/4.5) Tessar a bit shorter than normal and shot wide open....
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    Re: Teach me about Lens Design

    Bernice, I've been looking at lens articles in the Bulletin of the French Photographic Society. It is clear that from 1855, when the Society started publishing, lens makers and photographers prized...
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    Re: Ernemann DRP focal plane shutters

    Um, DRP isn't a type or make of shutter. It means patented in Germany.
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    Re: Teach me about Lens Design

    OP, what you're asking for is is exactly lens manufacturers have not tried to make. Your best bet in conventional (= not deliberately soft focus) lenses is an old relatively fast (f/4.5 or perhaps...
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    Re: Large format Astrophotography

    Drew, if the current C-90 is the astigmatic dog that the two (one purchased, the other a warranty replacement) I've had were, it won't do at all for astrophotography.

    To be fair to Celestron, I...
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    Re: So long. Been less than great.

    If you're going, stay gone. Otherwise, please stop saying goodbye.
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    Re: Process lens application?

    Both types also used lenses from Zeiss Jena (DDR) and its successor Docter, Berthiot, Boyer, TTH, Staeble (= Agfa, and sold under many names), Wray, ... And then there are process lenses from the...
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    Re: Process lens application?

    Absolutely positively usable, although putting the cells in shutter may be a problem. There are many solutions.

    I said usable but 19"/480 mm +/- is a long lens and will need that much bellows to...
  15. Re: Which of my 5 LF lenses are worth keeping or worth upgrading?

    How well you think fine detail is resolved in the final print. Good enough or not? Come to think of it, sharpness is overrated.
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    Re: Camera ID help/shutter question

    Berthiot was a major French lens maker.

    Per P-H Pont's chronology the serial number is from not that long before 1900.

    In that era, according to Pont & Princelle's Berthiot pamphlet there...
  17. Re: Restoring Crown Graphic - Advice and Wisdom Welcomed

    Look at the manuals here: https://1drv.ms/f/s!AggQfcczvHGN7QPLzcnfQqi0-7pf

    If that doesn't work, check the list for links. Also look around on graflex.org. That board seems dead but several...
  18. Re: Curiosity testing for diffraction limitation -- very general

    I wish there were a hard-and-fast rule but it really depends on how much you want to enlarge.
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    Re: Seeking the perfect monorail

    If a long long rail is needed, 80/20 1"x1" T-slotted extrusion is available quite inexpensively in lengths up to 97". Shorter pieces can be connected.
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    Re: Compur Electronic 3 battery issue

    You probably had the bad luck to have bought a bad battery. Just get another one and go forward.
  21. Re: Are there alternatives for Schneider Super Angulon XL 210mm to cover 11x14"?

    Hmm. I love obscure old lenses as much as the next photographer, but they're all hard to find and are often expensive. Expensive modern lenses are usually easier to find.
  22. Thread: Giday!

    by Dan Fromm
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    Re: Giday!

    Jumbo, I'm not sure that the Oz LF site will give you what you want, but you should look at it. https://viewcameraaustralia.org/
  23. Re: Are there alternatives for Schneider Super Angulon XL 210mm to cover 11x14"?

    Bernice, they're quite rare, but Berthiot made f/14 Perigraphes in focal lengths up to 800 mm. That's a #14. The 200 I suggested above is a #5.

    I have #s 1, 1bis and 2. They give away little to...
  24. Re: Are there alternatives for Schneider Super Angulon XL 210mm to cover 11x14"?

    Oren, thanks for the correction. I've edited the original post to remove the error.

    There's unobtanium and then there's unobtanium. I wish the OP luck in finding a 200/14 Perigraphe VIa.
  25. Re: Are there alternatives for Schneider Super Angulon XL 210mm to cover 11x14"?

    200/6.8 Grandagon-N, claimed coverage 495 mm @ f/22. 5 mm < 210/5.6 SAXL

    edited to correct an err0r (210) kindly pointed out by Oren Grad, to whom all credit is due
  26. Re: How To Test The Shutter On a Lens Intended for Use on a Graflex

    Huh? Graphic press camera or Graflex SLR?
  27. Re: Lens board light leak / lens board question

    Thanks for showing us. You may have a board drilled for a #1 shutter. If so, the hole's diameter will be 39 mm. Whether or not this is so, get a board (ask Intrepid) drilled for a #0.
  28. Re: Lens board light leak / lens board question

    First of all make sure that the shutter is properly seated. Unscrew the lens' rear cell, unscrew the retaining ring, make sure that the back of the shutter level on the front of the board, reattach...
  29. Re: Kodak Supermatic aperture scale question.

    Hmm. I have a 105/3.7 Ektar in Flash Supermatic in front of me. I have a dial caliper in my right hand. The diaphragm is wide open and the pointer is at the 3.7 tick mark. The diaphragm lever is...
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    Re: Cable release thread

    1) see post #8 above.

    2) see post #2 above.

    3) see post #6 above.
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    Re: Cable release thread

    Look at the nice picture you posted. The block that the release screws into is held to the side of the shutter's body by two screws. You want to replace it, or have it replaced. You don't want to...
  32. Re: Any picture examples of color film with old lenses?

    OP, I'm sorry that I have no examples to show you. I have, though, shot E-6 with a number of uncoated lenses, all anastigmats. f/6.3 Tessars from CZJ and Bausch & Lomb. Also with coated lenses...
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    Re: Bleitz Camera Co

    http://camera-wiki.org/wiki/Brand

    http://camera-wiki.org/wiki/Baco
  34. Re: PSA: Link to forum on homepage is broken.

    just worked for me
  35. Thread: Trail cart

    by Dan Fromm
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    Re: Trail cart

    https://www.ruxxac.com/home.html
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    Re: 14x17 Tessar Series IIb worth fixing?

    Years ago Bert Saunders sent me instructions for cleaning B&L Tessars' in barrel diaphragm mechanisms. Here's a link to it: https://1drv.ms/u/s!AggQfcczvHGNgkP30QQrY1NPA1aA?e=yUaHiY

    I've followed...
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    Re: Schneider-Krueznach Serial No. Check

    The books are in hard copy, haven't been scanned and posted. Where are pirates when we need them?
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    Re: Prism Finder for Ebony Camera

    Used inline viewers for 6x9/2x3 are out there. Look, look and look again. I believe that this http://linhof.com/en/balgenlupe-m-679-und-techno/ is still available, ask Linhof how/where to buy one....
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    Re: Prism Finder for Ebony Camera

    Toyo also made one that fits their 6x9 slider. Inline, not reflex.
  40. Re: Cambo sc and Schneider 90mm f/8 Super Angulon Multicoated focus problems

    Agree pretty much. After the OP sets the camera up properly and finds that the bellows contrains movements intolerably, then it will be time to shop for a bag bellows. But first things first, and...
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