N°202822 · Family detail
NikonWide·NIKON F mount·1981
Nikon AI-S Nikkor 20mm F/3.5
Specifications01
MountNIKON F
Focal length20mm
Max aperturef/3.5
TypeWide · Prime
Release year1981
Weight235 g
Filter size52 mm
Min focus distance0.3 m
Aperture blades7
Optical elements11
Groups8
AutofocusNo
StabilizationNo
Aperture controlAperture ring (Manual settings + Auto Exposure setting)
Lens hoodHK-6 - Clamp-on round
TeleconvertersNikon Teleconverter TC-200→ 40mm F/7
Nikon Teleconverter TC-201→ 40mm F/7
EraFilm era
Production statusDiscontinued
Additional Info02
Lens TypeUltra-wide angle prime lens
Summary02
Nikon F-mount AI-S Nikkor 20mm f/3.5 is a wide-angle prime lens for general wide-area photography and landscapes. It uses a fixed maximum aperture of f/3.5.
AI-assisted summary — verify against linked sourcesWhere can this lens be adapted?
The Nikon F mount has a flange distance of 46.5 mm. A plain adapter fits a camera whose flange distance is at least 1.46 mm shorter. How lens adapters work
- Nikon G lenses have no aperture ring: use an adapter with an aperture lever. Nikon E lenses set the aperture electronically: use an electronic adapter.
- Sony EAdapter · 28.5 mm
- Canon RFAdapter · 26.5 mm
- Nikon ZAdapter · 30.5 mm
- Fujifilm XAdapter · 28.8 mm
- L-MountAdapter · 26.5 mm
- Micro Four ThirdsAdapter · 27.25 mm
- Fujifilm G (GFX)Adapter · 19.8 mm
Covers full-frame: it can vignette on a medium format sensor.
- Canon EF-MAdapter · 28.5 mm
- Canon EFAdapter · 2.5 mm
A rear element that sticks out can hit the camera mirror.
- Nikon FNative
Other Mounts03
No alternate mounts are indexed for this family yet.