ΔStop 100 Timer

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ΔStop 100 is a dedicated enlarger timer that uses logarithmic, f-stop based timing instead of linear seconds. You set a base exposure in stops and every click changes exposure by a fixed fraction of a stop, so the math stays the same no matter the print size or paper type. That means faster test strips, clearer intent with every change, and less guesswork when a print needs a tiny nudge instead of a full second. It behaves the way photographers already think: exposure as stops, not time. The interface is focused on repeatable decisions, so you can move from test to final with confidence and keep a consistent record of the choices that got you there. Included in this: 1 fully assembled and tested ΔStop 100 timer 5VDC 1A wall adapter power supply 110VAC relay to trigger most standard enlargers Show more