Re: platinum exposure question

From: Richard Sullivan ^lt;>
Date: 03/09/04-12:06:36 PM Z
Message-id: <>

What is the light source? Why is it not getting full power to the bulbs.
Fluorescents, mercury and metal halide usually won't strike if not enough
"power". It seems he is citing the reason -- not enough power.

At 10:55 AM 3/9/2004, you wrote:
>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 12:08:59 2004

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