The basis of Steve’s theory is that ISO does not affect the number of photons that reach the sensor, since it doesn’t actually gather light – like aperture and shutter speed – it amplifies it.

Just bought your first camera? Learn essential photography tips, from mastering exposure and camera settings to composition ...

The international standard measurement of a camera's sensitivity to light, often simply called the "eye-so." For analog film cameras, the ISO is the "film speed," which is based on the chemical ...

Moon photography requires a balance of exposure, focus, and stability. Using a DSLR or mirrorless camera with a telephoto ...