40mm Lenses
A 40mm lens gives a standard field of view close to natural perspective. It works for street, documentary and everyday photography, and is often fast and compact.
On APS-C a 40mm lens frames like about 60mm (Canon APS-C: 64mm) on full frame; on Micro Four Thirds it frames like 80mm.
We list 773 lenses that include 40mm: 42 primes and 731 zooms across 19 mounts, with a fastest aperture of f/1.4.