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|Dimensions (dxl)||Approx. 3.0 x 3.7" (7.62 x 9.40 cm)|
|Filter thread||67 mm|
|Weight||1.07 lb (485 g)|
|Focal length||17 - 70 mm
Comparable APS-C Focal Length: 25.5 - 105 mm
|Minimum focus distance||11.04" (28.04 cm)|
|Format compatibility||Pentax Digital (APS-C)|
|Camera mount type||Pentax K|
|Angle of view||79° - 23°|
|Maximum reproduction ratio||1:3.22|
For several years now, Pentax’s DA 16-45mm f/4 constant-aperture zoom has been one of the workhorse lenses of the manufacturer’s stable. Although newer, faster glass has topped the 16-45mm in Pentax’s lineup, the lens has remained a favorite choice for the budget-friendly performance it offers up.
Pentax describes the 17-70mm f/4 lens as a “standard lens with extra zoom,” a cute catch phrase. But “standard zooms,” as they’re called, are one of the most popular lens groups.
I did purchase this lens in 2010. This image quality is very nice but I did replace the SDM 2 times since. I probably should have purchase the sigma but... I must agree with the fact that pentax should recall all those SDM lens and find a real fix because this is not good for a reputation.Pentax K5...
This lens has a very good build quality. The colors and contrast that this lens gives to a photo are very nice. Yes there is some false color that shows in high contrast area's, but there is a setting in the K3 for controlling it. It is not 100% perfect, but it does work nice.