Development timer

Set each step, hit start, and get an audible beep at every transition plus an agitation tick during development.

00:00
Ready

Times are examples — set your own from your film and developer. Keep the screen awake; the beep needs sound turned on.

About this tool

A hands-free timer built for the wet stages of black-and-white processing. Set the minutes for develop, stop, fix and wash, then let it run a linked countdown through each step. Audio beeps mark the end of every stage and remind you when to agitate, so you can keep your hands on the tank instead of the clock.

How to use it

  1. Enter the time in minutes for each step: develop, stop, fix and wash.
  2. Start the sequence and pour in your developer as the first countdown begins.
  3. Follow the beeps to agitate and to move on when each step ends.

FAQ

When do the agitation reminders sound?

The timer beeps at agitation intervals during each step so you know when to invert or twist the tank. Follow your developer's routine, for example agitating for the first 30 seconds then a few inversions each minute.

Should I include drain time in each step?

Yes. Emptying the tank takes about ten seconds, so start pouring out a little before a step ends. For short developing times this matters most, since draining eats into the effective time.