Average Reviews:
(More customer reviews)I have owned this lens almost from the day it was introduced in the U.S. It has a lot going for it--excellent construction, quiet focusing and a very useful zoom range. Between 17-50mm focal length, it is about as good as you could ever hope a zoom lens could be. The trouble begins above 50mm, where the image is soft at infinity focus, even stopped down to f8. This is not to say that the lens in unusable between 50-70mm. It probably can hold its own against similar lenses, e.g. the Sigma 17-70, which many users like. But if you are a fanatic about IQ, as I am, you may not be fully satisfied.
Click Here to see more reviews about: Pentax 17-70mm f/4 DA SMC AL IF SDM Lens for Pentax Digital SLR Cameras
Take a closer look with the Pentax® DA 17-70 mm f/4 AL (IF) SDM zoom lens. It features extra zoom capabilities for a wide range of shooting applications from wide angle to telephoto. A protective coating protects exposed lens elements, while the quick-shift focus system lets you easily change from auto to manual focus.
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