The Arduino listens for the Leica’s bulb-flash signal to tell when the camera fires, and then sends along the right codes to the EOS back. Sweet. There are still a few outstanding details.

While full-frame cameras have more light-gathering abilities, the APS-C camera is the sweet spot for many photographers to get a camera at a reasonable price that still takes excellent images.

Galaxy Camera was better described as a camera that ran Android. It was pretty sweet, with a 16.3-megapixel sensor that offered 21x optical zoom. Back then, 16MP was good. These days, Samsung ...