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06-22-2012, 01:50 PM   #16
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To be quite honest, I rarely shop at B&Ms in the first place. I vote with my dollar, and it has always been with online vendors whether it be prodigital, B&H, or even Futureshop.

Controversial opinion, I know.

10-12-2012, 07:11 PM   #17
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Join Date: Jun 2007
Location: Near Algonquin Park
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I was on Dxo tonight looking at what the top rated lenses were. They don't have a lot of top rated Pentax lenses because the best ratings come on FF bodies, and they don't rate a lot of stuff, so I was just cruising to see what is top rated on other bodies that might go on a K-5. The Tamron 90 which I already own was one that stood out, but, this lens might be the highest rated DxO lens that will go on a Pentax body.

It's rated here on APS-c it's great edge to edge.Tamron AF 28-75mm f/2.8 SP XR Di LD Aspherical (IF) (Nikon) - Review / Lab Test Report - Analysis

It looks like a great lens.

The Tamron AF 28-75mm f/2.8 SP XR (forgive me for using a shorter variant of the name ...) proved to be a very good lens in the lab. The resolution figures are among the highest tested among the standard zoom lenses - the center resolution is generally excellent and the borders follow closely on very good to excellent levels. The distortions are very low as is the amount of vignetting and even CAs are very well under control. Nonetheless it should be mentioned that this is the 2nd tested sample of this lens and both showed centering defects - this is worrisome. The build quality of the lens is decent but nothing to rave about. If you can live with the rather odd zoom range within the APS-C scope the lens is worth a deeper look - assuming you can get a good sample.

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