Pentax HD D-FA 90/5,6 ED AW SR

Technical Specifications
Focal Length    90mm
Equivalent to 35mm format    Equ. to 71mm in 35mm format
Maximum aperture    F2.8
Minimum aperture    F22
Number of Diaphragm Blades    9
Angle of View    34° (with PENTAX D-SLR camera body)
Construction    11 elements in 9 groups
Smallest object distance/magnification    0.413m
Magnification    0.5x
Filter size    67mm
Weight    1040g
Dimensions (Length x Diameter)   

111.6mm x 90.5