Lens barrel components are made from brass and aluminum alloys while the exterior user interface is manufactured from engineered plastic materials.
Specifications:
Lens Composition: 9 elements, 9 groups
Angular Field: 77 degrees~35 degrees
Minimum Focus: 0.5m/0.3m for macro photography
Diaphragm Action: MM fully automatic
F-stop Scale: f3.5-5.6-8-11-16-22
Lens Hood: No.1Metal Hood, screw in type (w/ 67/86 ring)
Weight: 325g (11.5 oz.)
Lens Size: 70 x 68.3mm
Lens Pouch: No 2
Lens Cap: 67mm (k-61), snap type