Sigma 12-24mm f/4.5-5.6 EX DG HSM is the world’s widest rectilinear lens for a 35mm SLR. The previous widest lens was Nikon’s 13mm f/5.6 AI-s manual focus lens which would cost you at about $15,000. The Sigma 12-24mm f/4.5-5.6 has Four Special Low Dispersion (SLD) glass elements for effective compensation of color aberration, which is a common problem with super-wide angle lenses. Two pieces of molded glass and three aspherical lenses, including two molded glass aspherical lens elements, offer excellent correction for linear distortion as well as all types of aberration.

This lens is quite big, but amazingly it is not heavy at all. With Canon EOS 5D, the Sigma 12-24mm f/4.5-5.6 EX DG is perfectly well-balanced. It’s also sturdy and cosmetically good in crackle-gray finish with heavily ribbed, rubberized, smooth-turning zoom and focus rings.

Real world photos of Sigma 12-24mm f/4.5-5.6 EX DG with Canon EOS 5D

Sunrise at Kintamani, Bali - Indonesia
Canon EOS 5D with Sigma 12-24mm @ 17mm f/16

Sunrise at Kintamani, Bali - Indonesia
Canon EOS 5D with Sigma 12-24mm @ 12mm f/16

More real world samples are available at the end of this post..

Test Photos of Sigma 12-24mm f/4.5-5.6 EX DG with Canon EOS 5D

Photos below are shot in RAW with daylight WB, Neutral picture style with 0 saturation, 0 sharpness. No post processing or Unsharp Mask filter applied.

Sigma 12-24mm f/4.5-5.6 EX DG @12mm

Sigma 12-24mm f/4.5-5.6 EX DG @12mm: 100% Center Crop at f/4.5

Sigma 12-24mm f/4.5-5.6 EX DG @12mm: 100% Corner Crop at f/4.5

Sigma 12-24mm f/4.5-5.6 EX DG @12mm: 100% Center Crop at f/5.6

Sigma 12-24mm f/4.5-5.6 EX DG @12mm: 100% Corner Crop at f/5.6

Sigma 12-24mm f/4.5-5.6 EX DG @12mm: 100% Center Crop at f/8.0

Sigma 12-24mm f/4.5-5.6 EX DG @12mm: 100% Corner Crop at f/8.0

Sigma 12-24mm f/4.5-5.6 EX DG @12mm: 100% Center Crop at f/11

Sigma 12-24mm f/4.5-5.6 EX DG @12mm: 100% Corner Crop at f/11

Sigma 12-24mm f/4.5-5.6 EX DG @12mm: 100% Center Crop at f/16

Sigma 12-24mm f/4.5-5.6 EX DG @12mm: 100% Corner Crop at f/16

Sigma 12-24mm f/4.5-5.6 EX DG @12mm: 100% Center Crop at f/22

Sigma 12-24mm f/4.5-5.6 EX DG @12mm: 100% Corner Crop at f/22

Sigma 12-24mm f/4.5-5.6 EX DG @17mm

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See also: Canon | Digital Camera | Lens Reviews | Sigma Lenses

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