ΔStop 100 Timer Special Edition (Timer Only)

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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. This is the timer ONLY. It does not include the power supply nor does it include the 110v relay module. You will need to supply both separately. The power requirements are 5VDC 1A with a 2.10mm ID (0.083"), 5.50mm OD (0.217") barrel connector. Included in this: 1 fully assembled and tested ΔStop 100 Special Edition timer Show more