Incorporates an AF/MF one touch switchover mechanism built into the focus ring(for Canon & Nikon only).
14 elements in 11 groups
Angle of View: 14°
Diaphragm Blade Number: 7
Minimum Focus: 0.47m (18.5")
Macro Mag. Ratio 1:1
Filter Diameter: ø72
Weight: 920g (32.5oz.)
Diameter x Length: ø84.8mmx165.7mm (3.3in x 6.5in)
Mount: Canon, Minolta-D, Nikon-D