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

reviewer#6684 date: Jan-5-2010
sharpness: 4.5
color: 4
build: 5
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 MP24MP24 MP36MP36 MP42MP42 MP
ownership:I used to own this lens
compared to:Minolta 28-75mm f/2.8 D
price paid:425 USD new
positive:Very sharp at 24mm f/2.8. Good overall image quality. Very solid build. 24mm is reasonably wide on a crop-sensor camera.
negative:Soft at 70mm f/2.8. Very heavy for a walkaround lens. Though rare, this lens produces some unusual ghost-like flare. Images have a yellow tint to them.
comment:This was my standard walkaround lens before I found a new-in-box Minolta 28-75mm f/2.8 collecting dust at a local camera shop. I liked the focal length on my a700 - though a bit more narrow than, say, a 17-50mm lens, I never had to worry about wide-angle distortion. Even better, this lens was very sharp at 24mm, so my widest shots looked great even at f/2.8.

On the downside, this lens is soft at 70mm. Stop down to f/4 for comparable sharpness to 24mm f/2.8. This lens is very heavy, so be aware of that if you will be shooting by hand for a long period of time. As with other Sigma lenses, colors look somewhat yellow. Flare is generally well-controlled (especially when you use the hood), but when it does appear, it tends to make your images look ghost-like or cloudy - a very unusual and unnatural effect. The few times this happened, the shot was ruined. If you don't shoot into strong light sources, the problem is essentially nonexistent.

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 - Home of the alpha system photographer
In memory of Cameron Hill - brettania