N°196466 · Family detail
NikonWide·NIKON F mount·1984
Nikon AI-S Nikkor 20mm F/2.8
Specifications01
MountNIKON F
Focal length20mm
Max aperturef/2.8
TypeWide · Prime
Release year1984
Weight260 g
Filter size62 mm
Min focus distance0.25 m
Aperture blades7
Optical elements12
Groups9
AutofocusNo
StabilizationNo
Aperture controlAperture ring (Manual settings + Auto Exposure setting)
Lens hoodHK-14 - Clamp-on 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
Additional Info02
Lens TypeUltra-wide angle prime lens
Field Notes02
Nikon F-mount 20mm f/2.8 fixed wide-angle prime lens. Intended for wide-angle photography such as landscape, architecture, and general low-light use.
AI-assisted summary — verify against linked sources
Other Mounts03
No alternate mounts are indexed for this family yet.