An F-stop timer to be used in the traditional darkroom for making wet prints.The exposure is first defined around a base exposure expressed in stops. Then additional dodging and burning exposure can be also be added.This timer also support the split printing technique with a soft and a hard exposure having each their own printing sequence.A test strip exposing mode with constant stop increment is also available to establish the correct base exposure. Stop increments goes down to 1/24 of stop.The enlarger lamp can now be trigged using an external bluetooth adapter visit: droidinthedark.com. You can still manually trigger the enlarger switch using the sounds emitted by this program to indicate correct triggering time.This timer also interacts with the Darkroom NoteKeeper application to save and retrieve print exposures for later reprint.