Groups
8
Elements
10
Fluorite
No
Ud Glass
Yes
Weight
5350g
Length mm
348
Diameter mm
166
Max Aperture
f/2.8
Min Aperture
f/32
Discontinued
Yes
Min Focus Distance
400cm
Aperture Blades
9
Introduced
1981
Focal Length (Max)
400mm
Focal Length (Min)
400mm
Filter Drop In mm
48
Manual Focus Only
Yes
Max Magnification
0.11