SMC Pentax-DA 17-70mm f/4 ED IF SDM Lens Review
SMC Pentax-DA 17-70mm f/4 ED IF SDM Verdict
The lens is a very good performer in many ways, with just a couple of weak areas as mentioned, designed with the central performance given priority. The questions to ask revolve around whether or not lenses from the same range that have wider ranges, sometimes better sharpness, faster focusing and weather resistance might not be a better option.
In isolation, the 17-70mm is capable of some fine images, looked at against more recent Pentax lenses it just may have now been overtaken.
SMC Pentax-DA 17-70mm f/4 ED IF SDM Pros
Very good central sharpness
Excellent central CA control
Focuses very close
QuickShift focusing available
Silent AF
Constant aperture design
SMC Pentax-DA 17-70mm f/4 ED IF SDM Cons
Lower edge sharpness
CA at edges at 17mm
AF not the fastest
No weather resistance
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The SMC Pentax-DA 17-70mm f/4 ED IF SDM lens is a solid performer with a useful range.
Specifications
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