Humidity Challenge for Pt, Pd
Stephen R. Harrison (102053.1342@CompuServe.COM)
13 Aug 96 02:12:58 EDT
On Aug 11, Judy Seigel Wrote
>,..... would you describe the "humidity box" for those of us who are
humidically challenged? Thanks.... <
I have been using a plastic box some 30" long, 8 " high and 12" wide with a
drugstore cold steam humidifier attached to a hole in the bottom. I've been
experimenting with humidifying the paper for up to 10 minutes both before and
after coating but before exposure in my UV light source. The relative humidity
reads 90% or more in the box. I have not done careful testing with a step wedge
and I know the power of the placebo effect on the human mind but I swear my
blacks are far deeper and the range of tones represented far greater. Before I
had simply held the paper directly over the humidifier vapor for a minute or
so and had not noted any improvement in a step wedge test . No profound
conclusions at this time however.
Stephen Harrison