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  1. Re: Greta Thunberg wet plate photos by Shane Balkowitsch

    Agreed, but I've seen it done. :(
  2. Re: Greta Thunberg wet plate photos by Shane Balkowitsch

    Yup, that's the one I was posting about.
  3. Re: Greta Thunberg wet plate photos by Shane Balkowitsch

    Sodium or ammonium thiosulfate are toxic to plants. I have a two-year-old bare spot in my back yard where a student dumped a pint or less of fixer.
  4. Re: Greta Thunberg wet plate photos by Shane Balkowitsch

    Looks pretty close to me. Just very flat lighting in the shade on a very fair complexion.

    Hoping he didn't do wet plates of an environmental activist in an environmentally sensitive area, then...
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    Re: Bellows and lensing question

    To put it simpler, get a modern lens with the same focal length as your Petzval. It will focus in the same place. It's a focal length thing. Focal lengths just do that. You know, focus at a...
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    Re: Some Soft Focus Lens Sales Information

    I think if you varied the spacing between the front elements (as Wollensak did with their f/4.5 Tessar), and used it with the anachromatic rear element, you could open up a tear in the space-time...
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    Re: Some Soft Focus Lens Sales Information

    The Boyer Opale is an interesting lens, one of the few to use chromatic aberration rather than spherical aberration to achieve its softness. I've been told it is a Tessar with the glass types in the...
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    Re: Rapid View Portrait (RVP) Pictorial lens

    Most lenses have just under a quarter-inch of threading for the flange. For Cooke's three turns, that's about a 13 tpi thread. (A 12 tpi thread would be exactly a quarter-inch of threads.) That...
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    Re: 8x10 Macro Photography lens Question

    For 1:1, I'd recommend a process lens. Those are optimized for around 1:1, and often close down to very small stops, which is helpful with the reduced depth of field at close focusing distances. ...
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    Re: Rapid View Portrait (RVP) Pictorial lens

    13 threads per inch is 13 threads per inch, regardless of the diameter. Cookes used a course thread that threaded on with three turns, every lens, every size! They also chamfered the start of the...
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    Re: 8x10 Macro Photography lens Question

    Weston's Pepper No. 30 is about twice life-size, and was made with a run-of-the-mill 210mm Zeiss Tessar, and I've never heard anyone complain about its quality...
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    Re: 8x10 Macro Photography lens Question

    It would be helpful for the OP to let us know the magnification. As Pere noted, 1:1 is different from 1:5. And very different from 5:1.
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    Re: Rapid View Portrait (RVP) Pictorial lens

    Congratulations! As there's nothing behind the mounting threads to grab onto on these, you need a flange or an iris mount. You could try making a tight-tolerance lensboard hole that you can thread...
  14. Re: Have you found exotic developers worth it for 8x10?

    Good advice, and it's what I've done. I went through that early phase of this developer vs. that developer, and found that while there were differences, they were all pretty good. HC110 has the...
  15. Re: Have you found exotic developers worth it for 8x10?

    Plain ol' HC110 does everything I could expect. I suppose I could dress the bottles up in sexy doll-size lingerie, like an "exotic" dancer and see if it made any difference...
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    Re: Help with Kodak 2D back

    I'm unclear, is the plate holder thicker than a standard film holder? Also, have you checked to see it's in registration with the ground glass for focusing?
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    Re: What Makes a sellable photograph?

    Agreed, and this confirms my theory that Marcel Duchamp's "Fountain" is by far the most successful work of Art in history. Also one of the most appreciated...
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    Re: New Carleton Watkins Book

    It wasn't unusual for a good 19th century compass to have a level more than equal to today's spirit and bubble levels.
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    Re: What Makes a sellable photograph?

    "What makes a sellable photograph? "

    Umm, someone willing to buy it?
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    Re: Mystery Georz lens?

    You may have to remove the glass from the mount to see what the construction is. I'd guess a WA Dagor with the identifying markings gone, but who knows...
  21. Re: First Post! - How Do I Measure My Bellows Extension To Calculate Bellows Exposure

    Unless you're using telephoto lenses, the rear nodal point is around the aperture's location. If you want to find your rear nodal point, focus your 135mm lens at infinity, and measure 135mm forward...
  22. Re: Current sources for having a lens flange made?

    For anyone keeping track, Grimes has responded wit a quote of $150 for an aluminum flange, $285 for brass.

    Tempe won't quote a price without seeing the lens, even though I offered all...
  23. Re: Current sources for having a lens flange made?

    Thank you, Bob!
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    Layout of a Morrison Leukoscope lens?

    I recently purchased a No. 1 Morrison Leukoscope lens. It arrived hazy and dirty, but cleaned up quite nicely, with no flaws to the glass at all. :) I kept careful track of each cell as I...
  25. Current sources for having a lens flange made?

    I recently bought a rather large brass lens needing a flange, (a No. 1 Morrison Leukoscope). Big and heavy enough, and historically important enough that I figured I'd splurge on having a proper...
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    Re: New Carleton Watkins Book

    I've ordered the book in question, but it's en route so I don't know what it will have to say or show. But I found this image of Watkins' camp in my files from my own expeditions into the wilds of...
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    Re: New Carleton Watkins Book

    Considering the transportation issues, the need to set up a functional wet darkroom for every location, and the process itself, taking a minute or two to level whatever support was being used would...
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    Re: 450mm lens with 420mm bellows draw?

    No problem! Just shoot things that are a little beyond infinity...
  29. Re: Stress of Buying Lenses - Sight Unseen / Reputation

    Thank you for the kind words, Darr!

    Not to drift the thread too much, but I wonder how the price of an original 9-inch P&S VQ would compare to the price of the Cooke PS945. Did it drive the price...
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    Re: Is This Art?

    Pretty much anything anyone labels as art is art. Try thinking of something that absolutely cannot be art.

    But that nagging question remains... is it good art?
  31. Re: Stress of Buying Lenses - Sight Unseen / Reputation

    Well, the obvious choice is the 9-inch P&S Visual Quality, which the PS945 is based on.

    If people are lucky enough to live where a number of LF photographers are nearby, you may be able to try a...
  32. Re: Which Petzvals have the Dallmeyer modification?

    Interesting! Looks like they also reduced the diameter of the rear cell, which would of course be magnified by the front cell. Half-way between t5he Petzval Portrait and the Petzval View,...
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    Re: Is This Art?

    Today's curators often consider themselves artists, creating novel "artistic" exhibitions from art created by others, often reinterpreting it to their own ends. Whether that's good or bad is another...
  34. Re: Looking for a brass 8x10 barrel style lens with either rotating aperture or iris

    There are so many options, it's hard to recommend single examples, but a couple of "typical examples" would be a Euryscop Series IV Number III, or a Darlot Hemispherique Rapide (Rapid Rectilinear)...
  35. Re: Bellows Wax & Wood Polish? Suggestions?

    It's worth remembering that unless there's been some stripping and sanding going on, you're polishing the lacquer, not the wood.
  36. Re: Adjustable Spacing in Jamin Darlot Petzval Lenses

    I just played with mine, and if you unscrew and remove the rear cell, the front tube will push into the rear for use as a landscape lens. But only friction holds it in, and not very well.

    I found...
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    Re: Some Soft Focus Lens Sales Information

    It's not an authentic reproduction unless it has the soft focus adjustment already frozen in place...
  38. Adjustable Spacing in Jamin Darlot Petzval Lenses

    Jamin and Darlot produced for a few years around 1860, a couple of versions of Petzval Portrait Lenses with adjustable spacing between the front and rear group. (Not to be confused with Dallmeyer's...
  39. Re: Which Petzvals have the Dallmeyer modification?

    My Ross No. 3 Cabinet Petzval (serial no. 56993, putting it 1890-95, according to Wilkinson and Glanfield) has the classical layout.

    I've taken to classifying the two layouts by the shape of the...
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    Re: Aerosol varnishing?

    The quickest "varnish" for event-tintypes would be Renaissance Wax, which people were using a few years ago. I don't know how much archival protection it offers... Anyone?
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