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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.

Contributors in Professional photography

Professional photography

Tungsten filament

Photography; Professional photography

Artificial light source using a tungsten filament contained within a glass envelope.

Depth of field scale

Photography; Professional photography

Scale on a lens barrel showing the near and far limits of depth of field possible when the lens is set at any particular focus and aperture.

Image stabiliser (IS)

Photography; Professional photography

Feature that minimises the effects of camera shake. Originally designed for video cameras. Canon has transferee the technology to its EF lenses.

T stops

Photography; Professional photography

More accurate measurement of light entering a lens than "f" numbers. Whereas "f" numbers represent the ratio between measured diameter and focal length, "t" stops are based on actual light ...

Astigmatism

Photography; Professional photography

Lens aberration making a single point light source impossible to focus as a true point.

Development

Photography; Professional photography

Process of converting exposed silver halides to a visible image.

Kelvin (K)

Photography; Professional photography

Unit of measurement on the absolute temperature scale, used to describe the colour content of continuous spectrum light sources.

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