Sebastiaan de With:

Spectre is a computational shutter for iPhone that allows everyone to take brilliant long exposures. A regular photo captures only a fraction of a second. Taking a photo over several seconds — a long exposure—unlocks all sorts of practical and artistic effects.

The only problem is that long exposures are kind of rocket science. You have to stabilize your camera with a tripod, take several shots to confirm a composition, guess the correct exposure over a long period of time, and hope for the best.

Spectre solves all of that, with the help of machine learning and computer vision.

I’m a huge fan of Halide so this app was an instant buy for me.