All technical specifications for the Sigma 24mm f/1.4 Art lens have been provided by Sigma: Aperture range: f/1.4–f/16. Angle of view: 84.1°. Aperture ring: Yes, with click and lock switch. Minimum focus distance: 25cm / 9.9 in. Maximum magnification ratio: 1:7.1. Optical design: 17 Elements in 14 Groups. Diaphragm blades: 11, rounded. Free Shipping On Orders Over $75. Call a photography expert: 1-770-333-4200. Description. Canon's new EF 24mm f/1.4L Ultrasonic lens is sure to become an indispensable tool for news photographers and professional photojournalists who demand fast, reliable and high-quality wide-angle lenses. The EF 24mm f/1.4L USM (Ultrasonic Motor) lens, built The image from the rear-focusing Canon 55-250mm IS doesn't seem to change as it's focused. Color Rendition performance top. The color balance of this 55-250 seems the same as my other Canon EF lenses. Coma performance top. Coma, or saggital coma flare, is when points of light in the corners turn into batwing-shaped blobs. Canon EOS 80D Canon EF 135mm F2L USM Canon EF-S 17-55mm f/2.8 IS USM Canon EF 100mm F2.8L Macro IS USM Canon EF 70-300mm f/4-5.6L IS USM +13 more Reply Reply with quote Reply to thread Complain At launch 2008 Canon wrote this regarding Canon EF 24mm F1.4 L II USM : "The Canon EF24mm f/1.4L II USM, an interchangeable L (luxury)-series lens for Canon EOS-series SLR cameras. The large-diameter, wide-angle lens boasts an ultra-wide maximum aperture of f/1.4, the brightest* in its class. 3 days ago · The 24mm f/1.4 has a 77mm, non-rotating filter thread and a bayonet mount for the supplied petal-type hood. With an optical formula of 15 elements in 11 groups, Sigma has chosen a relatively complex design for this class of lens (Canon and Nikon’s equivalents use 13 and 12 elements respectively). Sigma hasn’t skimped on the special glass By comparison, the Canon EF 24mm f/1.4L II weighs 650 grams. The Nikon AF-S 24mm f/1.4G weighs 620 grams. The original Sigma 24mm f/1.4 Art (Sony E version) weighed 740 grams, and even the newer “DN” version of the Sigma 24mm f/1.4 Art, designed specifically for mirrorless cameras, is 510 grams. EDIT: I made a big typo mess here, it’s the Sigma 24mm f/1.4 DG HSM not the Canon 11-24mm. Apologies; this happens when you are in a hurry. DPReview posted a set of sample pics shot with Sigma’s 24mm f/1.4 lens. Yesterday Signa announced the price of the new Sigma 24mm f/1.4 lens ($849). Pre-orders at BHphoto and Adorama. Once again Sigma Compared to the Canon 50mm 1.4 EF at 1.4, the 24mm have more definition. The 50mm has that halo-dreamy look at 1.4. None of this with the 24mm. Compared to the Sigma 24-60mm/2.8 (another VG lens in my kit and an absolute bargain) at 2.8 and 24mm, the Canon wins hand down. I've had my Canon EF 24mm f/1.4L II lens now for 18 months. Super lens for landscapes and architectural work with my full-frame 5D Mark III. Also works great on my 7D for sports, and wedding wedding candids (with an APS-C crop). I love shooting wide open and getting those dreamy-soft backgrounds. 544aOIr.