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Get information and user reviews for this lens at Amazon: Canon EF 24mm f/1.4L USM Wide Angle Lens for Canon SLR Cameras
The Canon EF 24mm f/1.4 USM L left some mixed feelings during the tests. The peak performance is about the best that I’ve seen at this focal length but it is reached late (f/8). The center quality is surely very impressive throughout the tested aperture range but this isn’t quite as true for the borders which are soft at f/1.4 and the quality only increases slowly towards medium aperture settings. The distortion and CA figures are acceptable for such a lens but vignetting is way too pronounced on an APS-C DSLR even though the problem is only visible at f/1.4. The build quality is typical for a Canon L grade lens – simply superb. If you’re looking for a high performance lens the EF 24mm f/1.4 USM L may be an option but if you don ´t need an ultra-large aperture it seems pointless to invest a magnitude more here. READ FULL REVIEW
Other Canon 24mm f/1.4 USM L EF Reviews
The retailers on the photo.net list charge about $1,500 for the lens, four times the price of the 24/2.8 lens. I borrowed a 24/2.8 and exposed the same scene, at the same settings, on the same roll of film, with the two lenses. I found readibly observable differences in contrast and flare control. Plus, the L lens has the extra speed that could mean the difference between making or losing the shot if the light is low and a tripod is not available. READ FULL REVIEW
The new EF 24mm f/1.4L II is bigger, heavier and has new optics which ought to be even sharper on full-frame digital. It uses a new coating called SWC (Sub-Wavelength Structure Coating), which sounds like the same idea as Nikon’s Nano-Crystal Coat. READ-FULL-REVIEW