Focal Length & Maximum Aperture : 50mm f/1.2
Lens Construction : 8 elements in 6 groups
Diagonal Angle of View : 46° (with full-frame cameras)
Focus Adjustment : AF with full-time manual
Closest Focusing Distance : 1.48 ft. / 0.45m
Filter Size : 72mm
Max. Diameter x Length: 3.4 in. x 2.6 in./85.4mm x 65.5mm
Weight: 19.2 oz./545g (lens only)