Sigma 12-24mm F4.5-5.6 EX Aspherical DG A-mount lens review by Photovisionz

reviewer#8225 date: Nov-10-2010
sharpness: 4
color: 4
build: 4
distortion: 5
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 MP24MP24 MP36MP36 MP42MP42 MP
ownership:I own this lens
compared to:Sigma 10-20mm
Minolta 24-50mm
price paid:1135 NZD
positive:fantastic wide angle range
quite sharp
neutral colours
No CA of any kind
Very little distortion
negative:never critically sharp
Not a fast lens (F4.5 max aperture)
comment:I like this lens. It has better sharpness, contrast and colours than the Sigma 10-20 lens for APS-C sensors. Its not as sharp at 24 mm as the Minolta 24-50 - significantly !
This is an optical compromise - overall sharpness has been evened out which means it never gets critically sharp in the centre but this brings up (the stopped down) corner sharpness to an acceptable level. Its great for architecture but for landscape big enlargements would start to suffer. It WILL be heavy.
Sigma have eliminated CA and minimised linear distortion in an incredibly wide and versatile lens. Its an architecture lens primarily. They have done an excellent job with optical tradeoffs.

rating summary

lens image
  • total reviews: 49
  • sharpness: 4.04
  • color: 4.39
  • build: 4.49
  • distortion: 4.49
  • flare control: 3.65
  • overall: 4.21 - Home of the alpha system photographer
In memory of Cameron Hill - brettania