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Thread: Collodion - Wet Plate Images

  1. #1881

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    Re: Collodion - Wet Plate Images

    Lea 3 is a sensitive collodion and part of the overall light was naturally quite strong natural light through the window.

    Thank you very much.

  2. #1882

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    Re: Collodion - Wet Plate Images

    Quote Originally Posted by Punker View Post
    Very nice! How on Earth did you manage a one-pop exposure at only 400ws? That's some fast collodion! Or a lot of additional natural light?
    Using UVP-X and the B&S developer 1:3 (though for half the time they suggest), I have gotten as low as 160Ws with no additional sources of light. Just depends on what you're illuminating, how you're illuminating it, and the chemicals you're using. UVP-X plus B&S seems to be at least 3 stops faster than most people's collodion when "pulled" to 20" of development to have a complete tonal scale. At the recommended time, it's at least 6 stops faster but too contrasty/wetplatey for my tastes. More exposure and less development gives a gentler tonal scale.

  3. #1883

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    Re: Collodion - Wet Plate Images

    UVP-X and B&S Developer 1:3 for 20"
    f/4.5 Tessar wide open
    900Ws into a 22" silver beauty dish about 30" from the subject plus 300Ws into a random 8" bowl reflector about 4 feet from the subject as fill.

    Overall, this one is perhaps a quarter stop over-exposed, so I should have used less light. Before varnish, the very lightest tones wanted to run together, which means it's just a little hot.


    20181230-1.jpg by Ty Williams, on Flickr

  4. #1884
    Tri Tran's Avatar
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    Re: Collodion - Wet Plate Images

    Bougainvillea
    14x14 in
    Cooke portrait


  5. #1885

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    Re: Collodion - Wet Plate Images

    Quote Originally Posted by Tri Tran View Post
    Bougainvillea
    14x14 in
    Cooke portrait
    An exquisite image!

  6. #1886

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    Re: Collodion - Wet Plate Images



    Photographed with my new Voigtlander Petzval lens, using Wet Plate Collodion technique. Plate = 5X7 inches.
    Collodion: 3 day old Old Workhorse from UV Photographics, developed with John Coffer's standard positive developer, for 15 seconds.

    Click image for larger version. 

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    Last edited by paulbarden; 10-Feb-2019 at 18:24.

  7. #1887

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    Re: Collodion - Wet Plate Images

    Quote Originally Posted by williaty View Post
    UVP-X and B&S Developer 1:3 for 20"
    f/4.5 Tessar wide open
    900Ws into a 22" silver beauty dish about 30" from the subject plus 300Ws into a random 8" bowl reflector about 4 feet from the subject as fill.

    Overall, this one is perhaps a quarter stop over-exposed, so I should have used less light. Before varnish, the very lightest tones wanted to run together, which means it's just a little hot.


    20181230-1.jpg by Ty Williams, on Flickr
    How did I miss this one?

    I'm surprised by the power used for the lighting. I've always been of the impression that lighting requirements were a lot higher!

    I like the slight "alabaster" look of this. Has a feeling of a roman sculpture.

    Great work.

  8. #1888

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    Re: Collodion - Wet Plate Images

    Quote Originally Posted by hoffy View Post
    How did I miss this one?

    I'm surprised by the power used for the lighting. I've always been of the impression that lighting requirements were a lot higher!

    I like the slight "alabaster" look of this. Has a feeling of a roman sculpture.

    Great work.
    Thanks!

    Yes, I seem to be able to use a LOT less light than most other people. I think it's a combination of 2 factors: the developer and collodion combination I use seem to be extremely synergistic and my wife and I have a good hard science and chemistry background so our lab technique is cleaner than what I've observed from other wetplaters.

  9. #1889

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    Re: Collodion - Wet Plate Images

    Quote Originally Posted by paulbarden View Post
    Photographed with my new Voigtlander Petzval lens, using Wet Plate Collodion technique. Plate = 5X7 inches.
    Collodion: 3 day old Old Workhorse from UV Photographics, developed with John Coffer's standard positive developer, for 15 seconds.

    Click image for larger version. 

Name:	0A8CE4DB-7FA4-410C-9F6C-B68AA2DB5009.jpg 
Views:	83 
Size:	38.8 KB 
ID:	187544
    Love the blur with that lens, Paul! Lovely shot in general.

    Here are a couple of interesting characters I met in the park the other day and their van. Sunny and then clouds and rain on and off threw off all my exposures that day. Everything a little overexposed (overcompensating).





    5x7 tintypes. New Guy collodion. Coffer's positive developer. Top photo with a B&L 5x7 Tessar 1c f/4.5 and the bottom with an Osaka Wide Field 120mm f/6.3.

  10. #1890

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    Re: Collodion - Wet Plate Images

    Quote Originally Posted by williaty View Post
    Thanks!

    Yes, I seem to be able to use a LOT less light than most other people. I think it's a combination of 2 factors: the developer and collodion combination I use seem to be extremely synergistic and my wife and I have a good hard science and chemistry background so our lab technique is cleaner than what I've observed from other wetplaters.
    No problems at all.

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