Professional photography

Professional photography

Professional photography is the occupation of taking pictures and selling them freelance or as part of a contract usually with a publication.

Industry: Photography

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Professional photography

Dichroic philtres

Photography; Professional photography

Produced by metallic surface coatings on glass to form colours by interference of light. Used in high quality colour enlarger heads.

Knifing

Photography; Professional photography

Method of removing marks and other blemishes from the surface of a print by gentle scraping with the tip of a sharp knife.

Two-color photography

Photography; Professional photography

Simple method of colour photography which analyses the spectrum into two parts instead of three, forming images which are combined with complementary colors.

Autochrome

Photography; Professional photography

Early commercial colour photography process in which the principles of additive colour synthesis were applied.

Diazo

Photography; Professional photography

Abbreviation of diazonium compounds, which decompose under the action of intense blue or ultraviolet radiation, forming an image in an azo dye.

Diaphragm

Photography; Professional photography

Term used to describe the adjustable aperture of a lens. It controls the amount of light passing into the camera and may be in front of, within or behind the lens.