Focal length: 28mm
Maximum aperture: 2.8
Minimum aperture: 22
Minimum Focus Distance : 1' (30cm)
Number of Blades : 7 blades
Filter Diameter : 49mm
Lens construction: 5 elements in 5 groups
Magnification : x0.13
Dimensions (D x L): 2.9/16" x 1.11/16" (71mm x 43mm)
Weight: 7oz (185g)