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

Heat philtre

Photography; Professional photography

Optical attachment made of thick infrared absorbing glass, used to absorb heat radiation from alight source without diminishing output.

Screen plate

Photography; Professional photography

Plate used in early additive forms of colour photography.

Hardeners

Photography; Professional photography

Chemicals often used with a fixing bath to strengthen the physical characteristics of an emulsion. The most common hardeners are potassium or chrome alum.

Optical device, usually fitted on 35mm cameras, which makes it possible to view the image while focusing. A mirror device laterally reverses the image so that the scene is viewed through the camera ...

Subtractive synthesis

Photography; Professional photography

Combination colour system used in modern photography materials. The complimentary colours of yellow, magenta and cyan are formed to provide a reasonably full colour image.

Camera obscura

Photography; Professional photography

Origin of the present day camera. In its simplest form it consisted of a darkened room with a small hole in one wall. Light rays could pass through the hole to transmit on to a screen, and inverted ...