Canon EF 100mm f/2.8 Macro USM, 12/8, Auto focus
Canon EF 100mm f/2.8 Macro USM. Lens structure (elements/groups): 12/8, Closest focusing distance: 12.2" (0.31 m). AF actuator: USM. Product color: Black. Diameter: 3.11" (7.9 cm), Filter size: 2.28" (58 mm), Length: 4.69" (119 mm). Magnification: 1.00x