Groups
3
Coating
S.S.C. (Super Spectra Coating)
Elements
6
Weight
740g
Length mm
146
Breech Lock
Yes
Diameter mm
90
Max Aperture
f/8
Catadioptric
Yes
Discontinued
Yes
Min Focus Distance
400cm
Aperture Fixed
Yes
Introduced
1978
Focal Length (Max)
500mm
Focal Length (Min)
500mm
Filter Drop In mm
34
Manual Focus Only
Yes
Max Magnification
0.14
Filter In Light Path
Yes