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Anonymous
>>75458 "Fast" is photospeak for a lens with a large maximum aperture (small f number), I can only assume because they let you use a faster shutter speed.
"Prime" is photospeak for a non-zoom lens, a lens with only one set focal length. Most photographers prefer them to zoom lenses, for four reasons.
1. Zoom lenses have to be designed to be good at a bunch of focal lengths. Primes, only at one. A zoom designer has to compromise both to get a halfway decent lens at, say, 35mm and 50mm. A designer of two primes can make both perfect.
2. Primes, being of simpler design, can usually be made faster than zooms.
3. Shooting with a prime teaches the photographer and forces the photographer to work in a way that (for most people) produces better photographs.
4. Many famous photographers, for the above reasons and often because they were the only lenses available at the time that weren't shit, used primes.
1, 2, and 3 are all good reasons. 4 isn't really.
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