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1 26702 5/10/2014
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Keywords: Pentax Wide Mid Tele Zoom APS-C DA WR HD Limited


Registered: January 2008
Posts: 7
Pentax 20-40mm f/2.8-4 ED Limited DC WR HD DA review by joekashi
Review Date: 5/10/2014 Would you recommend the product? Yes | Total Spent: $997.00| Rating: 9 

Pros: sharp, compact, weather-sealed, excellent build quality
Cons: first copy was decentered, required exchange

My first copy of this lens was very decentered but BH made a quick, no-fuss RMA exchange. The second copy was quite good, including at the 24-30mm range that others, including SLRGear, found wanting. I suspect that this is a quality control and assembly problem rather than a design deficiency. My first copy was terrible at focal lengths SLRGear's review showed to be good and good at the 24mm setting that was deficient here. My sense is that this design is capable of producing sharp images at all focal lengths, when stopped down to f/5.6 to f/7.1 but that misassembly can cause problems at a variety of focal lengths. Now that I have a good copy, I do like the lens and appreciate its compact, light design compared to the Sigma 18-35mm, my other possible option. The weather-sealing is appropriate for a K-3 or K-5.


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