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
Summary02
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 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.