Mount: Adaptall II (Interchangeable mount system)
10 elements in 9 groups
Angle of View: 27°
Diaphragm Blade Number: 9
Minimum Aperture: F/32
Minimum Focus: 11.4in. (0.29m)
Macro Mag. Ratio 1:1
Filter Diameter: ø55
Weight: 15oz. (426gm)
Diameter x Length: ø2.7 x 4.0in. (ø68 x 101.5mm)