Part II - Building a F-STOP Darkroom Timer
The goal of the darkroom timer build is to make it without much fuss, it’s inexpensive and accessible to anyone with basic knowledge.
In this part, part two we tackle the Arduino IDE and uploading the code then the relay, and the electrics. I even test it out to see if everything is working including the strip test with my office lamp. In part three we should be ready for the darkroom.
If you haven't already read part one, please do check it out, then things maybe a bit more clearer. • Part I - Build a F-STOP Darkroom Timer
Chapters:
0:00 Introduction
2:28 The second board
3:18 Powering the power
4:35 GPIO pins
5:16 Arduino IDE Install
5:54 Download Source Code
6:25 Compiling the code
7:49 Uploading the code
8:50 Display Disfuser
9:29 Wiring up the power
10:16 Testing the board
11:33 Conclusion
Darkroom timer are simple but don’t work the way they should. At least time based ones they are linear. Photography isn’t linear. F-Stops are logarithmic, i.e twice the light or half the light through the lens aperture. The enlarger is essential a camera in reserve. This easy to build darkroom timer will not only show exposure in time but it also display in F-Stops.
F- stop printing was originally made popular by the award winning printer Gene Nocon in 1987. If you want the full explanation, you can find it in his book Photographic Printing (now out of print, but available on the second hand market), or you could take a look at this interview with him.
PURCHASE ON ETSY - DARKROOM TIMER KIT
https://gavinlyonsart.etsy.com
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Blog POST: https://gavinlyons.photography/darkro...
Github : https://github.com/glyons/Darkroom-Timer
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