3-Channel Darkroom Timer – Triple Countdown Clock for Film Developing Large Format A: All 620-format cameras including

A: All 620-format cameras including the Kodak Brownie Hawkeye

620 cameras require the thinner 620 spool — 120 film will not fit without modification

and 127 formats

A: 127 film is used by a range of vintage cameras including the Yashica 44

and 3 series

3-Channel Darkroom Timer – Triple Countdown Clock for Film Developing Large Format A: All 620-format cameras including3 Channel Darkroom Timer Triple Countdown & Count Up Clock A versatile 3 channel darkroom timer designed for film developing, printing, and any process that requires precise timing. With three independent channels that can run simultaneously or separately, it is ideal for managing developer, stop bath, and fixer times all at once. Features Clock display in HR MIN SEC with AM PM format 100 hour countdown and count up timer with 1 100 second count up