We’re excited to announce Spectre, our second app for iPhone. 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. Make a bridge at rush hour look perfectly empty: You no longer have to get up at the crack of dawn to photograph busy tourist spots: Walk past colored lights to create a beautiful flow of color: And much more: play with light sticks and fireworks to create magical images. Turn highways into rivers of light, and water into a dreamlike painting. 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. The Computational Shutter A traditional shutter takes a single photo over a long period of time, collecting light to create a singular final image. Spectre reimagines long exposures: its intelligent shutter..