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 (14.0 oz)