Re: cyanotype exposure

From: Michael Koch-Schulte ^lt;>
Date: 11/13/05-08:10:00 PM Z
Message-id: <005001c5e8c0$84e08a40$b300a8c0@Sweetwood>

Ron Klein wrote:
> I am having some difficulty with my cyanotypes and I am hoping for
> some help.I get a very rich, deep blue on areas coated beyond the
> negative, but even the unexposed areas of the negative are very
> weekly colored. I have used exposures up to 45 minutes in my homemade
> exposure unit with a bank of 8 bulbs about 3 inches above the contact
> printer.
> I use T max 100 predominantly. Any suggestions?

Sounds like the TMAX is absorbing alot of UV? Try going an hour and a half?
This sounds waaaayyy too long though. I usually print cyano in about nine
minutes under BL UV fluorescent blubs. It could also be the glass in your
contact printer? What's the stepwedge saying?
Received on Sun Nov 13 20:12:00 2005

This archive was generated by hypermail 2.1.8 : 12/01/05-02:04:49 PM Z CST