Zoom lens starts at 17mm when used with a conventional 35mm SLR camera. When mounted on an APS-size digital SLR camera, it provides a focal length coverage equivalent to a 28-55mm (on a 35mm format camera), covering the desirable wide-angle to standard range.
14 elements in 11 groups
Angle of View: 104°-63°
Diaphragm Blade Number: 7
Minimum Focus: 0.3m (11.8") (entire zoom range)
Macro Mag. Ratio 1:5.4 (at 35mm)
Filter Diameter: ø77
Weight: 440g (14.4oz.)
Diameter x Length ø83.2mm x 86.5mm (3.3in x 3.4in)
Mount: Canon, Minolta, Nikon-D, Pentax