Black and White Digital Photography Photo Workshop

GLOSSARY

ambrotype

An early photographic technique used with glass plates that gives the image a very dark brown tone.

aperture

The opening in a moving diaphragm within the barrel of the lens. The aperture controls how much light passes through the lens and into the camera.

Aperture Priority

In Aperture Priority mode (A or Av), the photographer selects the aperture desired and the camera automatically sets the shutter speed as needed.

archival

A term used to describe the long-term stability of a photograph, or elements of that image such as the inks or the paper.

backlighting

When light is behind the subject, with the direction of the light coming into the camera.

bit depth

The number of bits representing a color in a single pixel.

bracketing

A way to create multiple and different exposures of a single scene. One image at normal exposure, one image underexposed by 1 f-stop, and one image overexposed by 1 f-stop creates a 3-stop bracket. Bracketing can be used to make sure there is one good exposure out of three (or more), or can be used to blend multiple different exposures to expand the contrast range.

brightness

The amount of light intensity in an image.

burning

The process of darkening a portion of a photograph. In image editing, this is done with the Burning tool.

color gamut

The number of potential colors that can be reproduced in a photograph, whether it is output on a screen or paper.

color groups ...