Entertainment / Photography Glossary

Blowup: Enlargement: a print that is made larger than the negative or slide.

Blue Print: Alternative term for cyanotype.

Blue Sensitive: Sensitive to blue light only. All silver halides used in traditional black and white emulsions are sensitive to blue light, but early photographic materials had only this sensitivity.

Blur: Unsharp image areas, created or caused by subject or camera movement, or by selective or inaccurate focusing.

Boom: Adjustable metal arm, attached to a firm stand, on which lighting can be mounted. Some booms are also made to support cameras.

Borax: Mild alkali used in fine grain developing solutions to speed up the action of the solution.

Border: Edge of a photographic print - either left white, or printed black.

Boric Acid: Compound used in certain fixers to prolong shier hardening life.

Bounce Light: Light that is directed away from the subject toward a reflective surface.

Box Camera: Simplest type of camera manufactured, and first introduced by george eastman in 1888. It consists of a simple, single element lens, a light tight box and a place for film in the back.

Bracketing: Technique of shooting a number of pictures of the same subject and viewpoint at different levels of exposure.

Brightfield: Method of illumination used in photomicrography which will show a specimen against a white or light background.

Brightline Viewfinder: Viewfinder in which the subject is outlined by a bright frame, apparently suspended in space. This may show parallax correction marks, or lines indicating the fields of view of different foc . . . View Full Definition

Brightness Range: Subjective term describing the difference in illumination between the darkest and lightest areas of the subject.

Brilliance: Intensity of light reflected from a surface. It is sometimes an alternative term for luminosity.

Broad Lighting: Portrait lighting in which the main light source illuminates the side of the face closes to the camera.

Brometching: Obsolete, special method of producing a bromide print. The result acquired the texture of its support and appeared similar to an etching.

Bromide Paper: Most common type of photographic printing paper. It is coated with an emulsion of silver bromide to reproduce black & white images.

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