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Hackaday

A Low F Number Lens, From Scratch

The F-number of a photographic lens is a measure of its light-gathering ability, and is expressed as its aperture diameter divided by its focal length. Lenses with low F-numbers are …read more

hackaday.com/2025/04/06/a-low-

Apr 06, 2025, 08:16 AM·Public·feedtoot
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