Evaluating Meniscus Lenses using Paper Negatives.

Discussion in 'Paper Negatives' started by Reinhold, Mar 4, 2012.

  1. Reinhold

    Reinhold Subscriber

    Messages:
    743
    Joined:
    Aug 20, 2003
    Location:
    Washougal, W
    Shooter:
    Multi Format
    First time users of meniscus lenses are often challenged by the learning curve required to use these lenses effectively.
    Interpreting the image on a ground glass and quickly seeing the results in a final print is important in the learning process.
    Paper negatives can reduce the "feedback" time between composing on the ground glass and evaluating the lens.

    This is only a "quick & dirty" (and cheap) method.
    It's not intended to be a treatise on making a "perfect" paper negative.
    A series of test exposures takes only a few hours:
    -- Use RC paper (any kind).
    -- Trim paper to fit the film holder.
    -- Pre-flash.
    -- Expose in camera. (Use ISO ±3~6)
    -- Develop. (1+10 stock Dektol, ± 6~8 min)
    -- Evaluate.
    --15~20 min dry.
    -- Scan & invert.
    --- or ---
    -- Contact print a positive
    -- Repeat as necessary.

    The photos:
    : Tape a strip of thick paper to your trimmer as a gauge.
    (Makes trimming paper to fit a cut film holder easy).
    : Pre-flash;
    Set lens @ f:32, expose to give a barely visible outline of a coin placed on paper.
    : Negatives; Use diluted and/or old print developer, 5~8 minutes.
    Aim for a "strong" negative image.
    : Examples of evaluating my new 335mm Wollaston lens

    Reinhold

    www.Re-inventedPhotoEquip.com
     

    Attached Files:

    Last edited by a moderator: Mar 4, 2012
  2. buggz

    buggz Member

    Messages:
    25
    Joined:
    Feb 4, 2012
    Location:
    Ellenwood, G
    Shooter:
    4x5 Format
    Cool, thanks!
     
  3. htmlguru4242

    htmlguru4242 Member

    Messages:
    973
    Joined:
    Aug 9, 2005
    Location:
    Sandy Hook,
    Shooter:
    Multi Format
    Forgive my ignorance, but what about these lenses makes them so tough to use?

    I love the results that they give.
     
  4. michaelbsc

    michaelbsc Member

    Messages:
    2,106
    Joined:
    Dec 18, 2007
    Location:
    South Caroli
    Shooter:
    Multi Format
    For starters they're very low contrast. And not terribly sharp, especially away from the center.

    So they're difficult to focus, or at least i find them so. But they give you a great "old-timey" look because that's what they used way back then.
     
  5. markbarendt

    markbarendt Subscriber

    Messages:
    6,671
    Joined:
    May 18, 2008
    Location:
    Beaverton, OR
    Shooter:
    Multi Format
    I agree about both reduced contrast and focussing being the issues.

    I've been flirting with trying Harman's direct positive paper along this line, maybe with my next order from Adorama.
     
  6. htmlguru4242

    htmlguru4242 Member

    Messages:
    973
    Joined:
    Aug 9, 2005
    Location:
    Sandy Hook,
    Shooter:
    Multi Format
    I cannot help but wonder what Infrared film without an AH backing might look like through one of these lenses! Maybe too soft?