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Thread: progess with paper negatives

  1. #1

    progess with paper negatives

    not a great image, but this is the 1st exposure using a yellow filter
    as suggested by Joe Van Cleave [haven't got to pre-flashing, that's next].

    img607sm.jpg

    This really tamed the negative, but needs another stop for the filter.

    homemade 8x10 foam-core pinhole camera
    0.45mm pinhole, ~ 145mm focal length, ~ f/325

    using ilford glossy rc rated @ iso 8, my best guess so far about exposure is
    ~ 400 times f/16, ~ 800 with the yellow filter

    I metered the shadows @ 10EV, highlights @ 15EV,
    so placed EV12 on zone 5 indicating f/16 @ 1 sec,
    and exposed for 400 seconds [6:40].

    shadows are a bit thin, as I did not add the 1-stop filter factor.

    overall the negative shows a lot of tonal range, and promises -with the extra stop-
    to give me a lot of good negatives in the future!

    -Tim
    The memory of things gone is important to a jazz musician.
    Things like old folks singing in the moonlight in the back yard
    on a hot night or something said long ago.
    - Louis Armstrong

    https://www.flickr.com/photos/stormiticus/tags/pinhole/

  2. #2
    Wow, great image Tim, that is sharp as with beautiful tonality.

    I've had a lot of success lately, with MG IV, just using a Y2 filter and not bothering with pre-flash or even weak developer.
    "The mission of photography is to explain man to man and each man to himself", Edward Steichen, in Arthur Rothstein 1986, 19.

  3. #3
    Administrator Tom Persinger's Avatar
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    great range of tones for paper - nice work!

  4. #4
    500+ Posts colray's Avatar
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    The image quality is spot-on!

  5. #5
    500+ Posts Ned.Lewis's Avatar
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    Looks great to me! I think the filter factor for a y2 filter and mgiv paper might be about 4, but best to test for yourself. Have fun!
    Some photos: Ipernity
    ( pinholes and solargraphs mixed in among the rest)

  6. #6
    thanks so much for the generous feedback, the yellow filter is indeed working,
    though the paper 'negatives' take some getting used to, and wow, a filter
    factor of 4 looks to be about 2 stops.... lots of long exposures ahead of me
    The memory of things gone is important to a jazz musician.
    Things like old folks singing in the moonlight in the back yard
    on a hot night or something said long ago.
    - Louis Armstrong

    https://www.flickr.com/photos/stormiticus/tags/pinhole/

  7. #7
    Difference in exposure with and without a Y2 on my camera/exposure meter is 1 stop.
    "The mission of photography is to explain man to man and each man to himself", Edward Steichen, in Arthur Rothstein 1986, 19.

  8. #8
    500+ Posts Ned.Lewis's Avatar
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    Hi Ray, maybe different kinds of light or amount of uv?

    Either way, if you think the negative will be best with one more stop, I think you should do that. I didn't mean to suggest that you should recalculate using a new filter factor!

    Cheers!
    Ned
    Some photos: Ipernity
    ( pinholes and solargraphs mixed in among the rest)

  9. #9
    here's one using just one stop for the yellow filter... pretty good range of tonality
    the rocks metered about 8EV while the sky was 15EV, the buildings 12EV.
    Place the buildings on zone IV, letting the rocks go dark so I could retain some sky...

    8 minutes, ilford rc glossy rated @ iso 6, yellow filter, f/325

    img609.jpg
    Last edited by dasBlute; 05-08-2014 at 01:21 AM.
    The memory of things gone is important to a jazz musician.
    Things like old folks singing in the moonlight in the back yard
    on a hot night or something said long ago.
    - Louis Armstrong

    https://www.flickr.com/photos/stormiticus/tags/pinhole/

  10. #10
    I have now taped a yellow filter inside the camera...!

    World's largest wind tunnel 80'x120' test section, ames research center

    img608.jpg
    The memory of things gone is important to a jazz musician.
    Things like old folks singing in the moonlight in the back yard
    on a hot night or something said long ago.
    - Louis Armstrong

    https://www.flickr.com/photos/stormiticus/tags/pinhole/

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