Mount: Adaptall II (Interchangeable mount system)
10 elements in 7 groups
Angle of View: 8°
Diaphragm Blade Number: 9
Minimum Aperture: F/32
Minimum Focus: 98.4in. (2.5m)
Macro Mag. Ratio 1:7.1
Filter Diameter: ø43
Weight: 79.9oz. (2,209gm)
Diameter x Length: ø4.7 x 8.4in. (ø120 x 212.5mm)