Sigma 24-70mm F2.8 EX DG Macro A-mount lens review by Sublimity

reviewer#9234 date: Jul-14-2011
sharpness: 4.5
color: 3
build: 5
distortion: 5
flare control: 4
overall: 4.3
tested on:
  • film camera:Film camera
  • APS-C: 6MP6 MP; 10MP10 MP; 12MP12 MP; 14MP14 MP; 16MP16 MP; 20MP20 MP; 24MP24 MP
  • full frame: 12MP12 MP24MP24 MP36MP36 MP42MP42 MP
ownership:I used to own this lens
compared to:CZ 24-70
CZ 24
T 17-50
price paid:400 CAD
positive:Excellent on APS-C
Good build
Good focusing speed
Good sharpness on APS-C
negative:Yellow and dull colors
Corner sharpness is very bad on FF
comment:On APS-C, the Sigma 24-70 F2.8 EX DG Macro is an excellent performer. F2.8 is certainly usable and sharp from F4 and beyond.

Focusing is fairly quick and build quality is good to very good. This lens is a good choice if you are considering a constant F2.8 zoom on the cheap for APS-C and require more reach than the ubiquitous Tamron 17-50 F2.8

Now for the bad.

On Full Frame, this lens shows its true colors (very dull, pun intended). Corner sharpness is very very bad and also suffers from heavy CA. The redeeming fact is that F4 in the center of the frame is still quite good but the edges are the exact opposite. Despite this critique, I still gave the sharpness rating a 4.5/5 because I believe this lens was intended for APS-C only under the generalization that FF users would be using high quality, more expensive lenses.

On both APS-C and FF, I would like to also comment on the color. They are, sadly, very dull and yellowish, especially at F2.8 where contrast is lacking. I used to think that the widely discussed relationship between lenses and image colors were overblown, until I used this lens.

In conclusion, I would highly recommend this lens for APS-C. Full frame users stay far far away.

rating summary

lens image
  • total reviews: 46
  • sharpness: 4.36
  • color: 4.50
  • build: 4.50
  • distortion: 4.59
  • flare control: 3.83
  • overall: 4.35
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