the.com/prime lens
one focal length, no zoom, no excuses — your feet do the framing.
means a camera lens fixed at a single focal length, built simpler and sharper than a zoom for the same money.
from from photography's early days when 'prime' meant the primary, sharpest lens in a set — before zoom glass existed, all lenses were prime by default.
speedoften opens to f/1.4 or wider, zooms rarely do
simplicityfewer moving elements means less light loss
the classic50mm is called nifty fifty for a reason
for instance
leica summilux 35mm — street photographers treat it like a religion since the 1960s
zeiss otus 55mm — manual focus, over 3000 dollars, obsessive sharpness