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09-06-2007, 09:17 PM   #1
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Makes a difference

Two shots....(1) using my newly purchase but ancient SMC Pentax M ZOOM 35 - 70mm 1:2.8 to 1:3.5, ($45 on eBay) and (2) using a somewhat old (but nowhere near as old as the Pentax) Sigma ZOOM 28 - 80mm f/3.5 - 5.6 ($85 at a camera shop). Slight sharpening on the Pentax, double the sharpening on the Sigma. No changes in contrast brightness etc.

Old glass is good....

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09-07-2007, 05:46 AM   #2
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I'm not sure if this is a case of old = good or Pentaxis better than Sigma.

It's not that I's knocking Sigma, as I have 2 of their recient (APO) zooms and find them exceptional, but that is now, not the past.
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