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.