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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
Farraday shutter
Photography; Professional photography
High-speed shutter using a pair of crossed polarizers, between which is a glass block within a coil. When a voltage passes through the coil, the plane of polarisation changes, allowing light to pass ...
Mercury vapour lamp
Photography; Professional photography
Is an artificial light source produced by passing current through mercury vapour in a tube.
Naphtha
Photography; Professional photography
Is a volatile petroleum based solvent such as benzine or gasoline (but not kerosene).
Sky philtre
Photography; Professional photography
Outdated term for a philtre which has a graduated density across its surface.
Ball and socket
Photography; Professional photography
Swivelling mount used to attach a camera to a tripod, consisting of a large ball joint designed to move in a cup.
Distortion
Photography; Professional photography
Alteration in shape and/or proportions of an image.
Near ultraviolet
Photography; Professional photography
Are wavelengths from about 400nm down to 250nm. Most photographic emulsions are sensitive to this range of bands.