Nikon Nikkor Ai-S 200-400mm F/4 ED

Specifications01

MountNIKON F

Focal length200-400mm

Max aperturef/4

TypeTelephoto · Zoom

Optical elements15

Groups10

Additional Info02

ModelAi-S

SeriesNikkor

Iris Blades9

Field Notes02

Nikon Nikkor Ai-S 200-400mm f/4 ED is a F-mount telephoto zoom with a constant f/4 aperture, used for sports, wildlife, and other long-reach subjects. ED glass helps reduce chromatic aberration.

AI-assisted summary — verify against linked sources

Catalog note · source: cinelenswiki

Sources03

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Other Mounts03

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