Scientific American is part of Springer Nature, which owns or has commercial relations with thousands of scientific publications (many of them can be found at www ...

Knowing how to set the exposure on a camera will produce a picture that's neither underexposed nor overexposed. Light meters are a godsend for photographers, as they tell them how much light is ...

The Keks M-Meter light meter brings modern tech to vintage Leica M cameras, featuring shutter speed coupling and a bright ...