Sigma 170-500mm F5-6.3 APO Aspherical A-mount lens review by 800si

reviewer#788 date: May-15-2006
sharpness: 4
color: 4
build: 4
distortion: 5
flare control: 5
overall: 4.4
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 MP24MP24 MP36MP36 MP42MP42 MP
ownership:I have experience with this lens
compared to:
price paid:
positive:Superzoom range.
negative:Is a bit soft on 7D.
Slow AF.
comment:I bought this lens used last year, and have been happy with it for the most part. It is adequate, but not perfect. It is slow to respond in AF mode, and the manual focusing ring is not very precise because it has too much play. I have gotten some nice bird shots with it, though. The images are soft on my 7D, and much sharper on my 800si film body. Chromatic aberration is also noticable on the 7D and non-existant on the 800si.

rating summary

lens image
  • total reviews: 16
  • sharpness: 4.16
  • color: 4.19
  • build: 4.25
  • distortion: 4.63
  • flare control: 4.50
  • overall: 4.34 - Home of the alpha system photographer
In memory of Cameron Hill - brettania