N°179041 · Family detail
NikonZoom·NIKON F mount·1981
Nikon AI-S Zoom-Nikkor 25-50mm F/4
Specifications01
MountNIKON F
Focal length25-50mm
Max aperturef/4
TypeZoom
Release year1981
Weight600 g
Filter size72 mm
Min focus distance0.6 m
Aperture blades7
Optical elements11
Groups10
AutofocusNo
StabilizationNo
Aperture controlAperture ring (Manual settings + Auto Exposure setting)
Lens hoodHK-7 - Clamp-on round
TeleconvertersNikon Teleconverter TC-200→ 50-100mm F/8
Nikon Teleconverter TC-201→ 50-100mm F/8
EraFilm era
Production statusDiscontinued
Additional Info02
Lens TypeStandard zoom lens
Field Notes02
Nikon F-mount AI-S Zoom-Nikkor 25–50mm f/4 standard zoom lens with a fixed maximum aperture of f/4. Intended for general-purpose photography across wide-to-normal focal lengths.
AI-assisted summary — verify against linked sourcesSources03
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Other Mounts03
No alternate mounts are indexed for this family yet.