Sigma 17-70mm F2.8-4 DC MACRO HSM A-mount lens review by ratboy

reviewer#7493 date: May-27-2010
sharpness: 4
color: 4
build: 4
distortion: 4
flare control: 4
overall: 4
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 own this lens
compared to:Sony 18-70
Sony 18-55
price paid:307 GBP
positive:Sharp for a zoom
Faster than the kit lens
Optical stabilisation
Non rotating front element
HSM is a bit slow
comment:Great, fairly sharp lens. Good replacement for the kit 18-70, its streets ahead. Much less CA and much sharper, although stop down to f5.6 or more at the longer focal lengths. Quiet and fast focus operation, does not hunt too much in low light.

I like the in-lens optical stabilisation the image seems more stable in the view finder. Is it any better/worse than in camera stabilisation ? Not sure.

Lens weight may be a problem for some people. Vignetting not really noticeable to me.

EDIT: After a year or so of using this lens, downgraded its sharpness rating. Mainly due to the soft edges even when stopped down a bit. Wide open images are definitely on the soft side.

rating summary

lens image
  • total reviews: 17
  • sharpness: 4.53
  • color: 4.47
  • build: 4.76
  • distortion: 4.06
  • flare control: 4.47
  • overall: 4.46 - Home of the alpha system photographer
In memory of Cameron Hill - brettania