Hi Chris,
Does the exposure frame work with other alt process prints? Perhaps 
UV glass is the culprit.
Peter
>Hi all,
>I'm not a platinum whiz; do you know what might be his problem, below?
>Chris
>
>
>
>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
This archive was generated by hypermail 2.1.8 : 04/01/04-02:02:05 PM Z CST