valokennolla
Valokennolla, also known as a light meter or exposure meter, is a device used in photography to measure the amount of light available during a photographic exposure. It helps photographers determine the correct exposure settings, such as aperture, shutter speed, and ISO, to achieve a properly exposed image. Valokennolla can be handheld or built into a camera, and they come in various types, including incident meters, reflective meters, and spot meters.
Incident meters measure the light falling on a subject, while reflective meters measure the light reflected
Valokennolla is an essential tool for both amateur and professional photographers, as it ensures that images