Quote Originally Posted by gmikol View Post
Are the UltraStable tissues as sensitive to differences in ambient humidity as dichromate-sensitized tissues?

Changes in ambient humidity and temperature have little effect on the sensitivity of the UltraStable pigment films. Furthermore, Dark Reaction, the spontaneous hardening of dichromate sensitized films, is practically non-existant with gelatin layers sensitized with Azido compounds. Another problem with dichromate sensitization, post-exposure variations in densities if not processed immediately, is also a non-problem with the UltraStable films.