Focal Length: 50mm
Maximum Aperture: 1.8
Minimum Aperture: 22
Closest Focusing Distance: 1.5 ft. (0.45m)
Angle of View: 46o
Filter Size: 52mm
Lens Construction: 6 Elements in 5 Groups
Maximum Reproduction Ratio: 1:6.6
Dimensions (D x L): 63.5mm x 39mm (2.5in. x 1.5in.)
Weight: 5.5oz. (155g)