Focus
Manual
Mount
Nikon F
Format
35mm full frame
Groups
8
Elements
15
Weight
1960g
Filter Thread
82mm
Length mm
305
Spec Notes
Japan's first SLR zoom (1959, marked 8.5-25cm). Variable f/4-4.5. Folds the f/4-4.5 and f/4.5 modifications (identical 15/8 hardware).
Max Aperture
f/4
Min Focus Distance
400cm
Aperture Blades
6
Introduced
1959
Focal Length (Max)
250mm
Focal Length (Min)
85mm
Aperture Max Tele
4.5