Sigma 12-24mm F4.5-5.6 EX Aspherical DG A-mount lens review by Dirk

reviewer#1013 date: Jul-11-2006
sharpness: 4.5
color: 5
build: 4
distortion: 5
flare control: 4
overall: 4.5
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 MP; 24MP24 MP; 36MP36 MP; 42MP42 MP; 61MP61 MP
ownership:I have experience with this lens
compared to:KM17-35//2.8-4(D)
KM 18-70 DT
price paid:
positive:Solid built and feel
Color rendition
Sharp from 12-24
No distortion
Compatible to 35mm and full frame
negative:Hood + cap
No front filter possible
comment:The main reason buying this lens for my 7D is both it's backward compatibility to 35mm and thus future FF joint.

On 35mm the results are stunning, 12 mm without noticeable distortion ! On the 7D it's still impressive with the 1.5 crop taken into account.

Already mentioned it's negleciable distortion. CA is very acceptable for this class of wide angle, and after some practice also predictable.

All shots done with it are tack sharp, both in 12 and 24. Best results are when stopped down to 7-8. Softness is no worse or better than KM 17-35. AF works very well, not the fastest I've experienced, but sure not slow, very acceptable for this lenses goal.

The color rendition compensates partly the lack of front filter adaption. This lens has character, sure ! compared to the 17-35, colors are much more vivid and intense.

This is a great lens for landscapes, architecture, city trips (did NYC with it!) and interiors. It's also usefull for group photo or funny portraits and stuff, exploiting it's wide angle behaviour.

rating summary

lens image
  • total reviews: 49
  • sharpness: 4.03
  • color: 4.39
  • build: 4.49
  • distortion: 4.49
  • flare control: 3.63
  • overall: 4.21 - Home of the alpha system photographer
In memory of Cameron Hill - brettania