N°100022 · Family detail
NikonWide·NIKON F mount·1989
Nikon AF Nikkor 20mm F/2.8
Specifications01
MountNIKON F
Focal length20mm
Max aperturef/2.8
TypeWide · Prime
Release year1989
Weight270 g
Filter size62 mm
Min focus distance0.25 m
Max magnification0.12
Aperture blades7
Optical elements12
Groups9
AutofocusYes
StabilizationNo
Aperture controlAperture ring (Manual settings + Auto Exposure setting)
Lens hoodHB-4 - Bayonet-type round
TeleconvertersNikon Teleconverter TC-14→ 28mm F/3.9
Nikon Teleconverter TC-14A→ 28mm F/3.9
Nikon Teleconverter TC-200→ 40mm F/5.6
Nikon Teleconverter TC-201→ 40mm F/5.6
EraFilm era
Production statusDiscontinued
Additional Info02
Lens TypeUltra-wide angle prime lens
Summary02
Nikon F-mount prime lens with a fixed 20mm focal length and maximum aperture of f/2.8, intended for wide-angle use such as landscapes and general photography. Suitable for low-light relative to slower wide primes.
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.