(1) An image’s tonal contrast range. (2) The range of light and dark tones in a subject that a film is capable of showing (i.e. how a film reproduces contrast). (3) The gradual changing of one tint or [..]

Transfer files from a storage device to a computer. When you transfer your digital camera's or memory card's image files to your computer, you are "downloading" them. (Note: Upload [..]

Illumination that comes from a man-made source, such as electronic flash.

Reds, oranges and yellows. Some color experts say that black and brown also have warm characteristics. Symbolically, warm colors are said to represent change, such as those changes that occur when sum [..]

A device (typically a pole with a platform on it) on a base of three legs to which a camera can be attached, providing support that eliminates or reduces camera movement. A tripod is useful for sharp [..]

The relative response of a light-sensitive emulsion to wavelengths in the electromagnetic spectrum.

Retouching of a photographic print using a brush with watercolors or dyes, or a pencil, to get rid of blemishes caused by dust or scratches on a negative.

A smooth plate found on the inside of the camera back that is forced towards the front of the camera by springs, causing it to hold the film evenly in place for exposure.

Pixels per [linear] inch, a measure of an image's resolution. Can also be referred to as Spatial resolution.

(Named after Harry Nyquist.) The sampling rate required to convert an analog signal into a digital signal. The sampling frequency must be greater than twice the bandwidth of the input signal to perfec [..]