Focal length: 8mm
Maximum aperture: 3.5
Minimum Aperture : 22
Lens Construction : 11 Elements in 6 Groups
Angle of View : 180 degrees
Number of Diaphragm Blades: 6 Blades
Minimum Focusing Distance: 13.5cm/5.3 in.
Maximum Magnification: 1:4.6
Filter Size : Rear (Gelatin filter)
Dimensions (D x L): 73.5mm x 68.6mm (2.9 in. x 2.7 in.)
Weight : 400g (14.0oz)