Re: platinum exposure question

From: Peter Ellzey ^lt;>
Date: 03/09/04-01:18:55 PM Z
Message-id: <a05210606bc73c8780603@[]>

Hi Chris,

Does the exposure frame work with other alt process prints? Perhaps
UV glass is the culprit.


>Hi all,
>I'm not a platinum whiz; do you know what might be his problem, below?
>So I have started to print platinum, and it has been ticking me off. our
>light source is not getting full power to the bulbs, so their output is
>really low and unpredictable. my exposure times were well over three
>hours,(my test strip was for an hour and it was a good 3 stops under
>exposed) in the light source and 45 minutes outside in bright sunshine,
>about a stop and a half under exposed. is there just no uv radiation in
>MT??? my ratio was 15/7/24 should i change this for digi negs? is there
>any way to speed up the emulsion of a platinum print? my tests from non
>silver for a type 55 neg was 1.5 hour exposure, why are they sooooo long? i
>am going to continue running some tests because i really want to get this to
>work, but any advice would be greatly appreciated. ---dave
Received on Tue Mar 9 13:19:27 2004

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