Focal length: 28.5 mm
Maximum aperture: 2
Minimum aperture: 16
Diagonal Angle of View: 75o
Lens Construction: 9 elements in 6 groups
Closest Focusing Distance: 0.7m/2.3 in.
Smallest object field: 528 mm x 793 mm
Highest reproduction ratio: 1:22
Filter (type) internal thread for screw-in type filters E 46
Dimensions (D x L): 53 mm x 40.8 mm (2.1 in. x 1.6 in.)
Weight: 270g (9.5 oz)