From alankrantas on hackster.io:
This is a practice project to make an Arduino-based incident light meter for old meterless mechanical film cameras, probably more useful for portrait photography. I don’t have the means to test it yet; sometimes the measured values seems to be pretty accurate, sometimes they are quite different from reflective light meters readings on my digital or analog cameras.
We #celebratephotography here at Adafruit every Saturday. From photographers of all levels to projects you have made or those that inspire you to make, we’re on it! Got a tip? Well, send it in!