B/W chemicals and light sensitivitygreenspun.com : LUSENET : Photographers Communicating : One Thread
How sensitive are b/w chemicals? At what point during the printing process can I turn on a light?
-- Jesse Torrey (firstname.lastname@example.org), March 29, 2001
I usually inspect my film while it's been fixing for a couple of minutes, but I think you are safe after stop bath if used. Definitely safe once fixing, though.
-- Mike DeVoe (email@example.com), March 29, 2001.
If you use orthocrometic film you can use green light when processing. so you can see it is under/over develop. It's difficult to find orthocrometic film .
-- Mohammad Irfanul Islam (firstname.lastname@example.org), November 22, 2001.
YOU SHOULD HAVE A ROUGH IDEA OF THE PROCESSING TIME AND TURN ON LIGHT (ONLY A 0 WATT BULB) TO CHECK THE DEVELOPMENT BRIEFLY AFTER 80% OF IT HAS LAPSEDAND THEN PROCESS ACCORDINGLY. PRACTICE ONLY ON NORMAL TO LOW AND NOT VERY HIGH SPEED FILMS
-- (G 700@REDIFFMAIL.COM), January 05, 2002.