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Thread: Compare Wet Plate to Best LF Film

  1. #1
    Tin Can's Avatar
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    Compare Wet Plate to Best LF Film

    I wonder if a good comparison in resolution ONLY has been made comparing film to wet plate

    While we are at it let us include historic, current and any hand made Dry Plates

    but only LF sizes, please
    sin eater

  2. #2
    Unwitting Thread Killer Ari's Avatar
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    Re: Compare Wet Plate to Best LF Film

    I watched a Topshit Photography video where he said that the collodion and silver make for a nearly grainless image.
    Something about using molecules instead of film grain, or something to that effect.

  3. #3
    Tin Can's Avatar
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    Re: Compare Wet Plate to Best LF Film

    Yes, saw that, hence my question to our experts

    T-Grain is bigger or what? Molecules are pretty small usually

    Quote Originally Posted by Ari View Post
    I watched a Topshit Photography video where he said that the collodion and silver make for a nearly grainless image.
    Something about using molecules instead of film grain, or something to that effect.
    sin eater

  4. #4

    Re: Compare Wet Plate to Best LF Film

    J Lane 9x12 Dry Plate Makiflex Petzval ADOX Borax MQ by Nokton48, on Flickr

    Dry Plate 9x12cm J Lane processed in ADOX Borax MQ replenished Unmarked Petzval brass lens an 8 incher about F4 (?) Exposed at EI 1. 1/4 at F4 Key day pure bright sun Aristo #2 Matte RC paper developed in Multigrade dev



    Makiflex Auto Petzval Ortho+ ADOX Borax MQ by Nokton48, on Flickr

    9x12cm EI 50 Efke PL100 ADOX Borax MQ + EI 50 Same F4 (?) brass unmarked Petzval lens 1/250 at F4 Aristo #2 Matte RC Multigrade dev


    Don't have any resolution data but this was an informative test
    “The secret of getting ahead is getting started.”
    ― Mark Twain

  5. #5
    Foamer
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    Re: Compare Wet Plate to Best LF Film

    I have found the tins I make are indeed grainless. I haven't been able to make any meaningful comparisons of resolution because I shoot wet plate with 19th C. lenses and film with modern Copal lenses.


    Kent in SD
    Qui sedes ad dexteram Patris,
    miserere nobis.

  6. #6
    Mark Sawyer's Avatar
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    Re: Compare Wet Plate to Best LF Film

    Wet plate still clumps into grain, but grain is generally proportionate to speed, so yeah, it's small. But looking for grain on a tintype is like looking for grain in a contact print. Gonna need a microscope...

    It would be fun to see a big print from a 4x5 wet plate negative beside a similar print from 4x5 film, same lens on the camera.
    "I love my Verito lens, but I always have to sharpen everything in Photoshop..."

  7. #7

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    Re: Compare Wet Plate to Best LF Film

    Do you want science or subjective impressions? For the latter, I'll say "wetplate is sharper than most film". For science,

    "The collodion layers have very low granularity and are comparable to microfilm emulsions. Intensification results in higher granularity."
    https://www.researchgate.net/publica...tific_approach

    "Even if fine grained, wet collodion process was definitely not infinitely resolving."
    http://hubicka.blogspot.com/2016/03/...graphs-in.html

  8. #8
    jp's Avatar
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    Re: Compare Wet Plate to Best LF Film

    Some of the big scans on Shorpy from 19th century appear grainless. I have not personally run into much grain scanning an ambrotype or tmax 400 with the Epson scanner but I'm not scientific about it.

  9. #9
    Mark Sawyer's Avatar
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    Re: Compare Wet Plate to Best LF Film

    I may be wrong but I think Daguerreotypes are the highest resolving process.

    Should have quit while we were ahead...
    "I love my Verito lens, but I always have to sharpen everything in Photoshop..."

  10. #10
    Tin Can's Avatar
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    Re: Compare Wet Plate to Best LF Film

    Seems KODAK has switched from glass to to film for Electron Microscopy

    This catalog page has a 2020 date

    Kodak Films including Electron Microscopy Film

    https://www.emsdiasum.com/microscopy...hic/kodak.aspx
    sin eater

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