contrast of negatives from cameras with curved film plane

Discussion in 'Pinhole Photography' started by Lukas Werth, Mar 31, 2006.

  1. Lukas Werth

    Lukas Werth Member

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    Oct 26, 2005
    Location:
    Pakistan
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    Multi Format
    Some days back, I got involved in a discussion about contrast of pinhole negs. Maybe this turned me attentive to the topic, because recently I noted something peculiar of pinhole cameras with a curved film plane I wanted to share: here, in daylight situations, flare easily becomes a problem for me, and, in difference to other monochrome negatives, it is very easy to overexpose them, leading to dense negatives with severly reduced gradation. I learned this at my cost, because this effect becomes particularly noticeable, and really a problem for me, in snow situations. (I normally use 400 ASA film in pinhole cameras, equivalent to HP5, which I expose to 300 ASA)
    The bright side: I can use my cameras with curved film in available light situations where a normal pinhole camera reaches its limits.