Underexposure occurs when a photograph receives too little light during capture or enlargement, resulting in an image that is too dark. This can happen due to insufficient camera exposure settings, low lighting conditions, or incorrect printing techniques.
Photographers need to understand underexposure to correct exposure errors and achieve balanced images. Proper control of shutter speed, aperture, and lighting ensures well-exposed photographs with full tonal range and detail, avoiding the loss of shadows and midtones in the final image.