What is f-number in photography?

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An f‑number (ƒ/#) or f‑stop refers to the ratio of a lens's focal length to its aperture diameter and indicates the amount of light coming through the lens.

anonymous · Answer 1

An f‑number (ƒ/#) or f‑stop refers to the ratio of a lens's focal length to its aperture diameter and indicates the amount of light coming through the lens.

What is f-number in photography?

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What is f-number in photography?

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