Focus
Manual
Mount
Pentax 67
Format
6x7 medium format
Groups
5
Elements
5
Weight
2570g
Filter Thread
77mm
Spec Notes
Early non-ED super-tele, min ap f/45, 77mm. DISTINCT from the M* 400/4 ED. Produced 1969-1971.
Max Aperture
f/4
Min Focus Distance
800cm
Aperture Blades
12
Introduced
1969