N°177929 · Family detail
NikonWide·NIKON F mount·1977
Nikon AI Nikkor 20mm F/3.5
Specifications01
MountNIKON F
Focal length20mm
Max aperturef/3.5
TypeWide · Prime
Release year1977
Weight235 g
Filter size52 mm
Min focus distance0.3 m
Aperture blades7
Optical elements11
Groups8
AutofocusNo
StabilizationNo
Aperture controlAperture ring (Manual settings only)
Lens hoodHK-6 - Clamp-on round
TeleconvertersNot compatible
EraFilm era
Production statusDiscontinued
Additional Info02
Lens TypeUltra-wide angle prime lens
Field Notes02
Nikon AI Nikkor 20mm F/3.5 is a 20mm wide-angle prime for Nikon F-mount cameras. It’s intended for landscape, architecture, and other wide views; suitable for moderate low-light with its f/3.5 maximum aperture.
AI-assisted summary — verify against linked sourcesSources03
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Other Mounts03
No alternate mounts are indexed for this family yet.