Focal length: 24mm
Maximum aperture: 1.8
Minimum Aperture: 22
Lens Construction: 10 Elements in 9 Groups
Angle of View: 84.1 degrees
Number of Diaphragm Blades: 9 Blades
Minimum Focusing Distance: 18cm/7.1 in.
Maximum Magnification: 1:2.7
Filter Size: 77mm
Dimensions (D x L): 83.6mm x 82.5mm
Weight: 485g (17.1oz.)