tray development under a safe light.
Toronto. Popular Mechanics often ran short ‘filler’ articles which were interesting and seemed to be practical to the frugal but of little value. Typical is this darkroom article from the April, 1941 issue on a way to increase productivity when tray developing B&W negatives (it would help if all films were the same speed, type, and exposure).
This approach may have worked to develop orthochromatic film, but panchromatic and colour films demanded total darkness during development. Tanks accommodated the total darkness need while allowing the darkroom enthusiast to follow his/her time and temperature guidelines in full light.
Thanks to good friend and historian, George Dunbar for offering this ad and giving me the idea for this post!
