A group of researchers has developed a new camera that is sensitive enough to detect a single photon. This large photon camera isn't unique in its purpose, but separates itself thanks to its ability to capture 400 times the resolution of previous photon cameras.
We’ve seen low-light photography before, but what about no light photography. While it seems borderline impossible, researchers have combined a number of techniques to produce photographs in almost complete darkness, where the resulting images are using less than one photon of light per pixel!
Photography instructor Mike Browne of PhotographyCourses.Biz has a clever way of teaching the basic principles of flash photography. He uses water from an ordinary garden hose as an analogy for light, showing different ways you can go about soaking your portrait subject.