Sigma 12mm f/1.4 DC Contemporary Lens for Canon RF Mount is an ultra-wide prime lens designed for APS-C Canon RF mirrorless cameras, delivering a 19.2mm full-frame equivalent focal length that is ideal for landscapes, street photography, architecture, interiors, and vlog-style video content. As the lightest prime lens in Sigma’s DC Contemporary lineup, it balances strong optical performance with a compact and portable design suited for everyday shooting and travel. The fast f/1.4 maximum aperture enables excellent low-light performance while also allowing photographers and creators to produce shallow depth of field and smooth background separation. A stepping motor provides fast, accurate, and quiet autofocus with minimal focus breathing, making the lens well suited for both still photography and cinematic video recording. The advanced optical design consists of 14 elements in 12 groups, including three double-sided aspherical elements and two Special Low Dispersion elements, helping to maintain sharpness, accurate color reproduction, and reduced distortion or chromatic aberration across the frame. The compact body is approximately 20 percent shorter than the Sigma 16mm f/1.4, improving portability without sacrificing image quality. Built for reliable outdoor use, the lens features a dust- and splash-resistant construction along with a water- and oil-repellent front element coating that helps protect the lens from dirt, moisture, and fingerprints. Additional design features include a rounded 9-blade diaphragm for smooth bokeh, a built-in control ring for intuitive adjustment of camera settings, and a 62mm filter thread for expanded creative options with filters. Manufacturer Included Items: Sigma 12mm f/1.4 DC Contemporary Lens (Canon RF), Sigma LCF-62 IV Lens Cap (62mm), Sigma LCR III Rear Lens Cap for Canon RF, LH652-01 Lens Hood, Lens Pouch. Bundle Included Items: Tripod, Filter Kit, Digital Cleaning Solution, Cleaning Cloth, Tabletop Tripod, Air Blower, Cleaning Brush.