Sigma 24-70mm F2.8 IF EX DG HSM A-mount lens review by rockhound

reviewer#5539 date: Jun-15-2009
sharpness: 5
color: 5
build: 5
distortion: 5
flare control: 5
overall: 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 own this lens
compared to:Sony/CZ 24-70
Sigma 24-70 EX DG Macro
price paid:
positive:Very sharp even wide open
flare control
Silent focus
Very smooth zoom
Focus clutch which allows manual focus while in AF.
Price compared to CZ 24-70
comment:Very sharp out of the box. The lens seems to focus correctly even under poor lighting conditions. The silence of the focus is a welcome change over the sonewhat noisy screw driven lenses. The focus ring clutch is fantastic as it allows one to fine tune the focus even while the lens is in AF mode.

The lens feels very solid and very well built. There are no squeaks or rattles and no wobbles anywhere. A couple of nitpicks are that the AF/MF switch feels a bit cheap compared to the CZ and the hood feels a bit lighter duty than previous Sigma hoods.

The lens is much nicer than the previous non-HSM version in that while it is slightly heavier, it is much more compact and silent. However you pay almost double for these convieniences. The image quality is about the same, if you can get a sharp copy of the non-HSM version.

I breifly tested (quick and un-scientific) this lens against the CZ 24-70, in a local shop, and the images each one produces are virtually indistinguishable. The only give away is that the CZ seems to have more neutral colors and the Sigma is a bit warmer, very slightly yellowish.

Currently, the US price of $899 is about half the cost of the CZ and therefore has an excellent price to performace ratio.

rating summary

lens image
  • total reviews: 20
  • sharpness: 4.65
  • color: 4.70
  • build: 4.75
  • distortion: 4.55
  • flare control: 4.70
  • overall: 4.67 - Home of the alpha system photographer
In memory of Cameron Hill - brettania