Exposure on digital cameras

The snowy, white scenery came out gray

Exposure control on a digital camera, is usually determined by an AE (automatic exposure) program, which gives the user no direct control over the exposure. However, because the AE program varies slightly from model to model, the photographer should acquaint himself with the peculiarities of his own camera. In general, the AE program is based on an 18% standard reflectivity gray (a slightly bright shade of gray), which works well unless extremely white or black objects appear in the scene. Each model uses a slightly different light sensor, a fact that you can use advantageously to achieve certain effects if you are willing to explore the possibilities by trial and error.

Successful shot of snowy scenery under a clear sky

Compare:Understanding Color/Color casts, overexposure, underexposure