The number of data bits contained in an image file that determines the number of colors that can be used to describe an image. The most common image files use 8 bits to render 256 shades of gray. Many digital cameras can capture 16-bit files, which can render 65,536 shades of gray.
To make exposures above and below the anticipated exposure setting, potentially overriding the camera's autoexposure setting. This technique is useful for capturing an accurate exposure in difficult lighting conditions.
A camera setting or shooting mode that captures a fast sequence of exposures by continuously holding down the exposure button.