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Sigma 70-200mm f2.8 EX APO IF HSM

05_03_1_
Review Date: Oct 18, 2005 Recommend? yes | Price paid: $750.00 | Rating: 9 

 
Pros: fast, cheap, quick focusing
Cons:
none

Can't think of anything wrong with it. An excellent overall lens, sharp, fast, cheap. Was a bit stiff when new, but soon grew out of that.

 
Sigma 20mm f/1.8 EX DG Aspherical RF

20_f1_8_1_
Review Date: Jun 16, 2003 Recommend? yes | Price paid: $300.00 | Rating: 8 

 
Pros: Fast, sharp, great price
Cons:
build quality, dual focus mechanism, AF Speed

A wonderful focal length, and a really fast aperture make this my favorite lens. Its by no means perfect though. The dual focus mechanism is annoying (why can't the clutch act as the AF switch as well?), as you can often have it in MF (on the clutch), and AF, and it will want to grind.

I did have to take it in to be repaired, as it stopped focusing or stopping down the lens (making it basically useless). Turned out to be some loose soldering.

Fortunately when the lens works, it works quite nicely, and produces some very nice images.