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Title: I Give Up
Review: I ordered this lens as a general purpose lens for my wife to use. I expected reasonable performance but didn't have high hopes. The first one I received had a front focus problem that was uncorrectable on both my Pentax K7 and Pentax K-r. I sent the lens back and received an exchange lens. This one would not focus at all in most of the wide angle range. I sent this lens back also. I'll now wait til the Pentax 18-135 comes out.
