Underexposure is the reverse of overexposure. In underexposure less light is allowed to let in than required for a proper exposure. This can happen when you use a shutter speed faster than normal, using an aperture smaller than normal or using a smaller ISO number. All this ensures that the photo-diodes on the sensor does not get enough light for exposure. An underexposed image would have lots of shadow areas with little discernible details. If shot in RAW, however, details can be recovered.

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This entry was posted by Sergey L.