Re: Blue gels and Pt contrast

TERRY KING (KINGNAPOLEONPHOTO@compuserve.com)
Fri, 20 Feb 1998 05:06:35 -0500

Message text written by Luis Nadeau
>We suspect that the
>contrast may in fact be related to the print times and that the blue gel
>just increases the print times which in effect, increase the contrast.

Very strong possibility and certainly true with dichromated systems.
<

This may appear paradoxical but my experience is that longer print times,
say with using a light source of lesser intensity, increase subtlety and
the flexibility of control with dichromated gum.

Of course this could be as a result of the less intense light source I use
being a graphic arts lamp designed for the purpose rather than UV tubes in
a sunbed.

Terry King