View Full Version : Images of BAD developer needed

28-Apr-2015, 22:28
My budding chemist daughter is doing a lab report (why yes, of course I gave her an ancient bottle of Edwal Ultra Black for analysis) and she needs an example of a film or paper developed with oxidized expired developer. Apparently, it could leave white spots and such.

If you have any paper or film with the markings, I would appreciate it very much if you can send me a photo. Thank you.