Measuring film camera shutter speed with an iPhone
How to check if your film camera shutter is working properly using an iPhone
Blog
The stuff I write
Introducing Basic Metronome
Basic Metronome – free (and ad-free) metronome for iOS
Introducing Lightmatic – iOS light meter with pinhole mode
Lightmatic – free (and ad-free) iOS light meter with pinhole support and custom reciprocity curves