Sigma 12-24mm F4.5-5.6 EX Aspherical DG A-mount lens review by Tricky01

reviewer#8928 date: Apr-16-2011
sharpness: 4
color: 5
build: 5
distortion: 5
flare control: 3
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 own this lens
compared to:Tarmon 10-24 (used on crop)
KM 17-35 (used on FF)
CZ 16-35 (used on FF)
price paid:500 GBP (SH)
positive:- Incredible distortion control (I still don't quite understand how it does it)
- Light
- Amazingly wide on FF
negative:- not the sharpest tool in the box (but not as bad as some say)
- Lens ID comes through saying it's a minolta 28-85!
comment:If you're looking for a super wide angle lens for full frame then this is the lens to go for. Unbelievably wide and handles distortion so very very well. Fun walk around lens for metropolitan areas. The extra 5mm may not sound a lot moving from the KM17-35 but it makes a massive difference. It's not the sharpest lens, but to be honest it's pretty bloody good. If you're using it on FF you've got to be pixel peeping to see.

It's also important to remember DoF is from the subject to the sensor; a lens like this needs to be put right up to the object you're taking so unless that object is concave, one part of that object will be very close to the sensor and the rest won't be. While it may still be soft in the corners, often this is due to the shallow DoF.

If you're on crop sensor (anything except A850 or A900) but *might* move FF in future I'd recommend getting this. Will be wide enough for most stuff and is then useable on FF (the tamron 10-24 is a good lens, but not compatible with FF).

Thoroughly recommend, but if you are going to get into wide angle stuff, do some research on how best to use them. This is the best article you can read, and you really should read it:

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