Specifications Filter Size .................................................55mm
f-Stop Range.............................................f/2.8-22
Minimum Focusing Distance......................10.8' (27cm)
Magnification............................................1:2 (1:1 with Optional Adapter)
Angle of View..........................................39 Degrees
Groups/Elements......................................5/6
Length.....................................................2.5' (62.3mm)
Max. Diameter.........................................2.7' (67.5mm)
Weight ....................................................14 oz. (400g)