Sigma 28-70mm F2.8 (ZEN) A-mount lens review by wolfy

reviewer#5499 date: Jun-4-2009
sharpness: 4
color: 5
build: 4
distortion: 4
flare control: 3
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:Minolta28-75mmF2.8D
Tokina-AT-X280 AF PRO 28-80 F2.8
Sigma 28-70 F2.8 EX
price paid:350AUD (new)
positive:Great old lens
pretty cheap, even when new
negative:Not as sharp on digital as it was on film.
Rubberised coating tends to fail after about 15years.
comment:I have had this lens from new, one of my original set of AF lenses when I moved to Minolta AF gear.

I would rate its sharpness as 4.5 for film, but less than that on digital (probably better as a 4.2 rating overall). It disapoints a little on digital as does the Tokina compared to. But colour and bokeh is good. Overall the Minolta and Sigma compared to do a better job.

When new I thought the rubberised finish was great, but a couple years ago it started to deteriorate and I had a tough time removing it as it got sticky as it deteriorated. Hence the 4 build rating, otherwise a tough lens.

Also seems to have more flare issues on digital than on film, hence the 3 rating (probably should be 3.5). Needs to be used with a hood for best flare and contrast, especially on digital.

rating summary

lens image
  • total reviews: 8
  • sharpness: 4.19
  • color: 4.38
  • build: 4.00
  • distortion: 3.75
  • flare control: 3.63
  • overall: 3.99 - Home of the alpha system photographer
In memory of Cameron Hill - brettania