Re: gum curves -- corrections
On Nov 11, 2006, at 5:35 PM, Katharine Thayer wrote:
(1) the two prints were printed on different days, with very
different environmental conditions. Ordinarily I would adjust the
exposure to accommodate a change in humidity as a matter of course,
but I was caught up in this idea about standardization, which shows
what a powerful idea it is, and how misleading it can be. The
humidity was 20% higher when I printed the curved print than when I
printed the uncurved print, and the curved print was simply way
overexposed by using the same exposure time.
I meant to add, re humidity, that I think Keith has the right idea in
controlling humidity by humidifying the paper.