Darkroom F-stop Timer

Darkroom F-stop Timer


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.

Recent changes:
- Decimal representation of F-stops
- Introduce grade exposure compensation
- Controls enlarger using bluetooth (see: droidinthedark.com).
- Introduce lamp fade compensation.
- Add an accessory timer.
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$4.58
91
4.6
User ratings
7
Installs
100+
Concerns
0
File size
641 kb
Screenshots
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About Darkroom F-stop Timer
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.

Recent changes:
- Decimal representation of F-stops
- Introduce grade exposure compensation
- Controls enlarger using bluetooth (see: droidinthedark.com).
- Introduce lamp fade compensation.
- Add an accessory timer.

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User reviews of Darkroom F-stop Timer
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Android Market Comments
A Google User
Jul 12, 2014
Ok app A little hard to figure out, but not impossible. Works as advertised. My major issue is that the App crashes on my Nexus 5 (Android 4.4x) every hour or two... fortunately, not in the middle of a test strip. so far.
A Google User
Oct 12, 2013
Great app, I dedicated a smartphone to this I just bought Jeff' F-stop timer application. Great work, Jeff! I just have one minor change request: Can you provide a square area on the screen that lights up in red when the enlarger should be ON? The reason is I want to use a phototransistor taped to the screen to control a relay to switch my enlarger ON and OFF. I would suggest the top left area of the screen, since this is unused in the current UI. An alternative solution is to put out a continuous tone (e.g. 1000 Hz beep) during exposure.