The RF mount has a flange back distance of 20mm, but RF lenses can be designed with a back focus distance shorter than 20mm. To avoid blocking mirror movement, EF lenses must have a back focus distance of at least 44mm. RF lenses can be designed with a back focus distance that is shorter than the 20mm flange back distance. Following is a comparison between the Samyang 24mm f/3.5 Tilt-Shift Lens and the Canon TS-E 24mm f/3.5 L II Tilt-Shift Lens. These 100% Canon EOS 5D Mark III-captured crops were taken from a section of the frame about 1/3 of the distance from the center to the full frame corner – still within what should be the sweet spot of the image circle Cities Available. The EF 24mm f/1.4L II USM Lens from Canon lens is a wide-angle prime lens that provides sharp imaging and impressive performance at all settings. Its wide maximum aperture of f/1.4 allows for effective low-light photography and its circular aperture and narrow depth of field provide pleasing background blur. Rumored RF Lenses. Canon RF 14mm f/1.4L USM; Canon RF 24mm f/1.4L IS USM; Canon RF 28mm f/1.4L IS USM; Canon RF 35mm f/1.4L IS USM; Yes, the Canon RF 35mm f/1.2L USM has been rumored, but the reports seem to go back and forth between f/1.2 and f/1.4. It doesn't make much of a difference in our eyes, but the “f/1.2” would be a nicer Focal Length: 24mm Aperture Range: f/1.4-f/22 Mount Type: Canon EF Format Coverage: Full Frame Minimum Focus Distance: 9.84" Angle of View: 84° Magnification: 0.17x Focus: Autofocus/Manual Focus Optics: 13 Elements/10 Groups, 8 Iris Blades Filter Size: 77mm Dimensions: 3.42"L x 3.29"⌀ Weight: 1.4 lbs Adapting Canon EF lenses and other EF mount lenses from major third parties to Fujifilm GFX cameras. Canon EF 14mm f/2.8 L II USM. Canon EF 24mm f/1.4L II USM. Canon strengthens its line-up of EF-series lenses with the introduction of a new fast aperture prime lens: the EF 24mm f1.4L II USM. Replacing the EF 24mm f/1.4L USM, the EF 24mm f1.4L II USM has been completely redesigned to provide an exacting partner lens to Canon's new EOS digital SLRs, the EOS 50D and the EOS 5D MKII. L-series Tilt - Shift Lenses. A professional-grade ultra-wide L-series f/4 lens, for specialists capturing architecture landscapes and interiors. Our lens selector will take you through our range of lenses and help you find the perfect match for you and your EOS camera. The resolution, quality, and fantastic colors have built Canon’s reputation. When you’re looking for a lens for a Canon DSLR camera, make sure you get one indicated as EF because that’s the type of mount it has. The following are the best Canon EF lenses for wedding photography. 1. Canon EF 24mm f/1.4L II USM Lens. 24mm = 2.83' 28mm = 3.25' 50mm = 5.80' 50mm = 1768 70mm = 2143 105mm = 3461 : Review: Canon EF 24-105mm f/4L IS USM Lens : « Canon EF 55-200mm f/4.5-5.6 II XFnWb4M.