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Focal length

GlossaryGlossary of Photography TermsFocal length

Focal length by lens construction type.

The ratio of the sensor size and focal length determines the viewing angle.

Division by lens focal length

Wide-angle lenses with a small focal length (up to 24 mm) and large viewing angle
Normal lenses with a focal length around (50 mm)
Telephoto lenses with a long focal length (from 135 mm)

Lens offers

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