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The smc Pentax DA 17-70mm f/4 AL [IF] SDM lens is designed for exclusive use with Pentax digital SLR cameras. This standard lens with extra zoom offers outstanding, well-balanced handling, and covers the most frequently used focal lengths between wide-angle and telephoto making it ideal for a variety of shots including scenery, snapshot and portraiture.
It features a 4.1X zoom ratio covering wide-angle to moderate-telephoto ranges, and covers a focal-length range from 26mm wide angle to 107mm telephoto in the 35mm format. When mounted on a compatible* DSLR camera body, the Pentax original SDM system driven by a built-in supersonic motor, offers exceptionally smooth, quiet autofocus.
Developed specifically for Pentax digital SLRs,** this 17-70mm lens also features Pentax SP (Super Protect) coating that protects the exposed lens elements and repels dust, water and grease. It also features a Quick-shift Focus System that allows instant switching from auto to manual focus with a turn of the focus ring.
* This lens is compatible with the Pentax K20D, K200D, K100D Super and K10D (with Ver. 1.30 or later firmware installed). When mounted on other camera bodies, the focus mode is automatically switched to manual.
**SDM-only focusing lens may be used with non-SDM Pentax DSLR bodies in manual focus mode.
Maximum aperture: f/4.
Minimum aperture: f/22.
Angle of View: 79-23°.
Weight: 485g.
Dimensions (Length x Diameter): 93.5mm x 75mm.
Filter size: 67mm.