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05-05-2009, 07:09 AM   #1
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Pentax 50-135 vs Sigma 50-150

I'm currently looking at the pentax da* 50-135 and the Sigma 50-150 lenses deciding which would be the best buy. I've never needed weather sealing, and the shop I buy my lenses at offer 4 years warrenty which also covers water damage. While browsing these forums, it seems like Pentax DA* lenses aren't as good as Pentax claims. People seem to be constantly complaining about loss of SDM autofocus after a while, and especially if it's been standing unused for a while. I've therefore been concidering the Sigma 50-150 as an alternative. It's got HSM and a little more reach on the far end. Also, it apparently works well with the Sigma telekonverters. Does anyone have any experience with this Sigma lens?

05-05-2009, 07:40 AM   #2
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Here you go... Jay shot 'em both side by side - though the Sigma was on the Nikon D90.

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