Focal length: 50mm
Maximum aperture: 1.4
Minimum Aperture: 16
Lens Construction: 8 Elements in 6 Groups
Angle of View: 46.8 degrees
Number of Diaphragm Blades: 9 Blades
Minimum Focusing Distance: 45cm/17.7 in.
Maximum Magnification: 1:7.4
Filter Size: 77mm
Dimensions (D x L): 84.5mm x 68.2mm (3.3 in. x 2.7 in.)
Weight: 505g (17.8 oz)