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  Reviews by: S Borthwick  

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Sigma 24-70mm f2.8 EX Aspherical DG DF

24_70EX_med_1_
Review Date: Sep 14, 2007 Recommend? yes | Price paid: Not Indicated | Rating: 8 

 
Pros: Price, Comes with Lens Hood, Constant Aperture, Vivid colors
Cons:
Poor Design of Lens Hood, weight, backwards zoom, weird autofocus clutch ,82MM filter size

My lens is a Canon Mount...From the reviews I have read earlier copies of this lens seemed to have QC issues, I was nervous about getting this Lens, but glad I chanced it.

My copy has none of the focusing issues that previous reviewers complained about and it seems very sharp at both ends even at F 2.8, I agree that this lens is really good at F8. or 11. I found that this lens has good contrast and reproduces really vivid colors. The Lens hood is included but isnt all that great.

The Autofocusing is not HSM or Ultrasonic but I found the autofocusing accurate and not noisy enough to complain about... especially for the price. Sigma must be reading the reviews and fixed the quality issues or I got lucky and got a really good copy, either way I am very happy with this lens. I am not really sure why people who review this lens compare this lens to the Canon L 24-70 F 2.8, I feel the similarities end at the focal length and constant aperture, and price.

The Sigma lens seems to be built well, but is not on par with a Canon L series lens construction. I own a 70-200 F2.8 USM L series lens so I am familiar with L lenses. The Sigma is alot of lens for the money, I tried the Canon L version of this lens in a side by side comparison at a local camera shop, I could not justify the differences in the lenses to trade up to the L lens...