Photography blog reviewed Canon’s new EF 24mm f/2.8 IS USM ($850) lens. The review goes over 7 sections and has an investigative eye on all the features and promises of this lens. From the conclusion:
[...] the Canon EF 24mm f/2.8 IS USM build quality is reassuringly good and it makes a good partner to a full-frame Canon DSLR like the 5D Mark III. Auto-focusing is quiet and quick, with the ability to manually override it and focus manually if required proving a nice touch. The capable image stabilization system used in conjunction with a high-ISO monster like the 5D Mark III is a low-light shooter’s dream ticket, making it easy to hand-hold the camera and get the shot.
Image quality is generally excellent. Chromatic aberrations are very well controlled, geometric distortion is impressively low for an ultrawide lens (unless you are focusing very close), and the Super Spectra coatings successfully prevent contrast loss attributable to flare
[via photography blog]