Lens Mount:
PENTAX KAF2 Mount
Lens Construction:
15 elements in 12 groups
Angle of View:
83 - 31.5 degrees (when used with PENTAX Digital SLR camera body)
Aperture Control:
Automatic
Minimum Aperture:
F22
Number of Diaphragm Blades:
9
Metering System:
TTL open-aperture metering
Minimum Focusing Distance:
0.3m
Filter Size:
77mm
Maximum Magnification:
0.21X
Dimensions (diameter x length):
3.3" x 3.9" (84mm x 98.5mm)
Weight:
19.9 oz. (565g) without hood; 21.2 oz. (600g) with hood