If you own or have used this lens, let us know what you think! Leave your comments and thoughts below.
Get information and user reviews for this lens from Amazon: Sigma 12-24mm f/4.5-5.6 EX DG IF HSM Aspherical Ultra Wide Angle Zoom Lens for Canon SLR Cameras
The Sigma AF 12-24mm f/4.5-5.6 EX HSM DG is the most extreme full format ultra-wide zoom lens around and it is still a “mainstream” ultra-wide lens when used on APS-C DSLRs. If you’re looking for a future-proof “duo-format” lens in this class – well, here it is. However, there’re a couple of further good arguments in favor of the lens. In the APS-C scope the resolution is very high and even throughout the tested aperture and focal length range and as such more harmonious compared to dedicated APS-C zooms which tend to suffer from edge problems. Distortions are extremely well controlled for a lens in this class and vignetting is generally not a problem except maybe at 12mm @ f/4.5. The only significant issue are lateral CAs at and below 17mm – you better shoot RAW files and correct the issue in your RAW converter, otherwise CAs are too extreme. The build quality of the Sigma is excellent and the fast and near-silent HSM (ultrasonic) AF drive is a welcome feature. The price tag of the lens is fairly moderate in relation to what you get for your bucks. Highly recommended … if you can get a good sample (the tested sample in Canon mount wasn’t quite as good). “¦ READ FULL REVIEW
Other Sigma 12-24mm f/4.5-5.6 EX HSM DG AF Reviews
Works OK. I didn’t do a thorough evaluation since the ergonomics were so lackluster. I’m not a fan of Sigma. Get the Nikon or Canon for a digital camera. The Nikon 12 – 24 mm is brilliantly sharp and nothing could better it on a digital camera. The Nikon and Canon lenses are smaller, lighter, faster (f/4) and take real filters. The Canon additionally covers a wider angle and wider zoom range. “¦ READ FULL REVIEW
Photo Zone (Canon Mount Tested)
The proved to be a very decent performer for an ultra-wide zoom lens (on APS-C). It has specific strengths (extremely low distortions) and weaknesses (CAs, vignetting at 12mm) but generally the optical quality is very fine with good to very good resolution figures. The build quality is also very impressive. Nonetheless the lens faces a rather stiff competition from and the Tokina AF 12-24mm f/4 AT-X Pro. This gang of three produces relatively similar results so you may spend some agonizing thoughts to choose between them based on your specific preferences. Note: In the meanwhile I’ve tested the Nikon variant of the Sigma and it performed quite a bit better. Seems as if the tested Canon version was not the best sample around. “¦ READ FULL REVIEW