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  Reviews by: tjloeb  
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Sigma 10-20mm F4-5.6 EX DC HSM

111_small
Review Date: Apr 9, 2007 Recommend? yes | Price paid: $450.00 | Rating: 10 

 
Pros: Excellent build quality. Fast and quite focusing. Great image quality. It has rapidly become my "always on" lens.
Cons:
Lens cap

I was looking for an additional wide angle lens to supplement my EF-S 17-55 f2.8 IS USM. The extra 7mm makes a major difference at the wide end.

I have a Sigma APO MACRO 150mm F2.8 EX DG HSM whose build and image quality were as good or better than any of the Canon equivalents.

So adding another Sigma EX lens was an easy choice.

I have found the 10-20 to meet my needs perfectly. The images are sharp for a lens of this focal length. Focus is fast and accurate. The build quality is top notch.

You do need to be careful to keep the lens level to avoid distortion unless that is your artistic goal.

I share the common complaint about the lens cap. It is odd that a company like Sigma can build such a suburb product with such a poorly designed lens cap. A minor gripe given how easy it is to fix.
 
Canon EF-S 17-55 f/2.8 IS USM

l217_efs1755
Review Date: Feb 7, 2007 Recommend? yes | Price paid: $949.00 | Rating: 10 

 
Pros: A great all in one lens. Fantastic image quality throughout its entire zoom range and the fast and accurate autofocus combine to give you a superb all in one lens. Add an extension tube and you have a good close up lens as well.
Cons:
Does not include a lens hood

A wonderful lens. I was looking for a lens that I could use in "no flash" environments and the 17-55 fit the requirement perfectly.

The match up with my 30D is perfect.

The combination of the large aperture along with the 3 stop IS give you a great low light lens.

It also preforms in normal and bright light equally well.

The dust myth seems to be never ending here. I have had no dust problems with this lens.

For a great technical overview of the lens go to:

http://www.canon.com/camera-museum/tech/report/f_repo.html