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.
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40mm lenses
![Pentax smc Pentax-FA 28-200mm f/3.8-5.6 AL [IF]](https://upload.wikimedia.org/wikipedia/commons/thumb/2/2f/SMC_Pentax-FA_3.8-5.6-28-200_mm.jpg/500px-SMC_Pentax-FA_3.8-5.6-28-200_mm.jpg)