Lens Speed
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Refers to the maximum aperture of a lens. One with a wide aperture is called "fast". e.g. a f/1.4 lens, transmitting more light than a "slow" lens, e.g. a f/5.6 lens.
Refers to the maximum aperture of a lens. One with a wide aperture is called "fast". e.g. a f/1.4 lens, transmitting more light than a "slow" lens, e.g. a f/5.6 lens.
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