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  1. Replies
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    Re: Large format at Jan. 6 hearing

    Yes, it's good for hand-held action shots. But it's very versatile; you could also put it on a tripod and do long-exposure still-lifes of, say, ketchup dripping down a wall...
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    Re: Large format at Jan. 6 hearing

    Better be careful. I don't think we're allowed to talk about the weather...
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    Re: Large format at Jan. 6 hearing

    Real press photographers shoot wet plate...
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    Re: Must your image be technical perfect ?

    An image should be what you want it to be, and others can argue over whether you were right.
  5. Re: What are we allowed to talk about in the Lounge?

    Yes, but it's a dead art...
  6. Re: What are we allowed to talk about in the Lounge?

    Maybe we should disallow discussions that mention ISO ratings because everyone knows the International Standards Organization is run by Satan-worshipping lizard people from outer space who eat...
  7. Re: What are we allowed to talk about in the Lounge?

    I agree with Brian, nothing political there, just stats on heat related deaths, and some information on keeping safe in hot weather that seem pertinent here:

    "The population of adults aged 65 and...
  8. What are we allowed to talk about in the Lounge?

    Have we gotten to where talking about the weather is too controversial? Or was the thread closed for another reason?
    ...
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    Re: Book form plate holders for wet plate

    I'm not sure why you put the tacks in, but if they move the plate off the focal plane, you may have minor focus problems.

    I agree that half plate is a nice size. 4x5, 5x7, and 8x10 look so modern...
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    Re: Book form plate holders for wet plate

    Those are meant for dry plate; any plate holder that's double-sided is meant for dry plate, as wet plates are shot one at a time. If the inside isn't finished, put a protective coat of polyurethane,...
  11. Re: 4x5 Portrait lens recommendation with "classic" look and feel

    Agreed, but as the OP stipulated a Copal shutter, I'm guessing he doesn't have a Sinar system.

    Another front-shuttered system is the Mentor, though those are sometimes for metric-sized films.
    ...
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    Re: Reciprocity - how far?

    So properly-exposed long exposures won't last if left unprocessed, but properly-exposed short exposures will?
  13. Re: 4x5 Portrait lens recommendation with "classic" look and feel

    My recommendation would be the 9.5-inch Wollensak Velostigmat Series II with the soft-focus adjustment. Versatile with a very classic rendering, though you won't find one in a Copal shutter. That...
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    Re: Reciprocity - how far?

    I'm not sure about the reversion of the silver back to an ionized state. 75-year-old unprocessed film from WWII can still hold a decent image,...
  15. Re: Henry William Jackson glass negative from NGM 1989/2 , Is it colorful ?

    Not sure, but I think the mirroring Mark is referring to is silver migration, where the metallic silver migrates to the surface and forms a reflective metallic sheen that may have various colors...
  16. Re: What’s your most “unpopular” opinion about LF?

    I was referring to the optical axis of the lens, not on/off axis tilts of the standards. If you tilt the lens, you tilt the axis.
  17. Re: What’s your most “unpopular” opinion about LF?

    True, but front swing takes the lens off-axis, requiring more lens coverage and swinging the plane of focus off the focal plane.

    Get a little, lose a little...
  18. Re: What’s your most “unpopular” opinion about LF?

    I don't think much of Deardorffs, which some photographers have an almost religious devotion to.

    And most YouTube LF videos are full of bad information from experts who just got their first 4x5....
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    Re: Kodak Eastman View 2D: Serial Numbers?

    And a "must-have" for any collector...
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    Re: Keeping or tossing prints?

    I'd rather have people ask why I burned my prints than ask why I didn't...
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    Re: Keeping or tossing prints?

    There's also the old saying, "the garbage can is the most under-used tool in the darkroom".
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    Re: Keeping or tossing prints?

    There's an old story about Ansel Adams keeping his slightly flawed work prints. Adams was also generous about reviewing visiting photographers' portfolios. If a visitor seemed sufficiently full of...
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    Re: Wet Plate Collodion questions answered here.

    My silver nitrate bath is well over ten years old and has had well over a thousand plates through it. With occasional maintenance and replenishing, I expect many more years out of it.
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    Re: What equipment is hard for you to find?

    Simple plexiglass or 3D printed silver tanks for wet plate would be nice to have at a reasonable price. Most people could make their own wooden boxes to hold them, so just the tanks. Currently, 4x5...
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    Re: Remove paint from lens outside

    Perhaps just repaint the offending area black, then re-enact your font on or through that?
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    Re: Portraits from 2022

    Very nicely done!
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    Re: Anyone else need idiot proof dark slides?

    Most of us keep at least cursory notes on each exposure, such as lens, f/stop, development time that will be needed...

    I keep mine on little post-it notes stuck to the dark slide, with the...
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    Re: Wet Plate Collodion questions answered here.

    Sounds like it's the collodion, as the other chemicals are known to work. The amount of salts (the bromides and iodides) is pretty forgiving as they're both well past saturated solutions, (you can't...
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    Re: Wet Plate Collodion questions answered here.

    Welcome to the forum!

    Your problems could have any number of sources, the developer, the silver bath (did you season it?), the collodion, light leaks, exposure, some misstep in processing, the...
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    Re: Lens F/Stop Scale Question

    Each diminishing stop decreases the aperture area by half, regardless of focal length. What might change is the degree of magnification of the aperture by the front element/entrance pupil, but this...
  31. Re: Planning Roadtrip for June in Middle/Western USA

    Phoenix in June? You're going to love it... :rolleyes:

    There's a good-sized contingent of large format photographers in Tucson if you'd care to visit. Around a dozen of us gather for coffee...
  32. Re: Is it .27 or .30 when figuring out a focal length - Which one do you use?

    A six-inch lens on a 4x5 is equivalent to a 150mm lens on a 4x5.

    Best not to think in terms of equivalents and just let large format be its own thing. Asking "what lens would I use on a 35mm?"...
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    Re: Ansel Adams Portrait Session

    Fascinating history; so that's part of how the University of Arizona's Center for Creative Photography had a chance to get its foot in Adams' door...

    Thanks, Merg!
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    Re: Ansel Adams Portrait Session

    I wish I could afford an assistant to blame things on... :rolleyes:
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    Re: Ansel Adams Portrait Session

    Actually, that's Edwin McMillan, who did win the Nobel prize in 1951.

    https://www.nobelprize.org/prizes/chemistry/1951/mcmillan/biographical/
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    Re: Verito 14.5 inch

    Oh, it's easy to find! It's all over the place!

    (Actually, the achromatic doublet at the rear corrects the Verito fairly well, though not perfectly. Most of the Verito's soft effect comes from...
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    Re: Ansel Adams Portrait Session

    I searched but couldn't find it, though there were a number of images of Adams making the portrait. Just none of the actual portrait.

    Perhaps he forgot to pull the dark slide...
  38. Re: Close-Up lenses for LF photography, advice needed

    I suppose you could use the Imagon as a close-up diopter, just as you could use any positive single-celled lens (front of a Petzval, rear of a Tessar or Verito, half a Rapid Rectilinear...) as a...
  39. Re: Close-Up lenses for LF photography, advice needed

    Actually, 1/4 of the sum.

    For 8x10 and 11x14, I'd suggest a +3 diopter (333mm) and a +2 diopter (500mm). Whole sets including those and a +1 (1000mm) and +10 (100mm) are cheap. If you want to...
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    Re: Dots on my lenses...

    Cross-referencing to this thread taht has some good information:

    https://www.largeformatphotography.info/forum/showthread.php?166671-References-on-the-meanings-of-colored-lens-dots
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