If you own a Digital single-lens reflex (DSLR) camera you might want to read out the shutter count. For my Canon EOS 7D this can be done very easily using gPhoto2. gPhoto2 is a free open-source tool which supports more than 1300 cameras. As it is written for Unix-like systems it can be compiled for OS X very easily. If you have Homebrew installed, you can install it easily via the terminal by running

brew install gphoto2

Homebrew will install some libraries and gphoto2. Now we can switch on the camera and connect it by USB. Continue reading →