N°431636 · Family detail
NikonZoom·NIKON F mount
Nikon Nikkor Ai-S 25-50mm F/4
Specifications01
MountNIKON F
Focal length25-50mm
Max aperturef/4
TypeZoom
Optical elements11
Groups10
Additional Info02
ModelAi-S
SeriesNikkor
Iris Blades7
Focus Rotation Deg75
Field Notes02
Nikon NIKKOR Ai-S 25-50mm F/4 is a standard zoom for Nikon F-mount, providing a mid-wide to short-tele range with a fixed f/4 maximum aperture. Intended for general-purpose photography.
AI-assisted summary — verify against linked sources
Other Mounts03
No alternate mounts are indexed for this family yet.