N°195678 · Family detail
NikonWide·NIKON F mount·1977
Nikon AI Nikkor 18mm F/4
Specifications01
MountNIKON F
Focal length18mm
Max aperturef/4
TypeWide · Prime
Release year1977
Weight325 g
Filter size86 mm
Min focus distance0.3 m
Aperture blades7
Optical elements13
Groups9
AutofocusNo
StabilizationNo
Aperture controlAperture ring (Manual settings only)
Lens hoodHN-15 - Screw-type round
TeleconvertersNot compatible
EraFilm era
Production statusDiscontinued
Additional Info02
ModelAi
SeriesNikkor
Lens TypeUltra-wide angle prime lens
Iris Blades7
Field Notes02
Nikon F-mount wide-angle prime lens with a fixed 18mm focal length and maximum aperture of f/4. Intended for wide-field photography such as landscapes and interiors.
AI-assisted summary — verify against linked sources
Other Mounts03
No alternate mounts are indexed for this family yet.