The EF 24-105mm f/4L IS II USM improves upon the first version of the lens, but isn't the best 24-105mm available for the Canon system. Things look a bit better at 105mm. At f/4 the lens EF lenses have the reputation to work well adapted to R bodies. RF lenses seem to be a bit better and lighter than their adapter RF ciblings, though. On the other hand the 55-250 has an excellent reputation and starts out at F4, as the EF 24-105. So you would not loose much light, compared to the EF. Canon EF-S 17-85mm f/4-5.6 IS USM Lens: 1.15' (0.35m) 0.2x: 0.43 - 0.14x: 0.72 - 0.33x: Canon EF 24-70mm f/2.8L USM Lens: 1.25' (0.38m) 0.29x: 0.63 - 0.18x: 1.25 - 0.40x: Canon EF 24-105mm f/4.0L IS USM Lens: 1.48' (0.45m) 0.23x: 0.60 - 0.40x: n/c - 0.61x: Canon EF 28-135mm f/3.5-5.6 IS USM Lens: 1.64' (0.50m) 0.19x: 0.53 - 0.09x: 1.09 - 0.21x Made to Excel This Canon EF 24 105mm USM lens features the L series lens design on its exteriors. Flaunting a sturdy construction, this EF lens is built to withstand the rigors of professional use. This lens features a revised optical design that offers high resolution and edge to edge sharpness throughout the zoom range. Robust all-rounder: Canon EF 24-105mm f/4L IS II USM. The Canon EF 24-105 mm f/4L IS II USM is the successor to one of the most popular zoom lenses in the Canon range. A lens with a zoom range of 24 to 105mm includes, for many photographers, almost all the focal points they need: wide angle, medium wide angle, standard lens, short telephoto RF24-105mm F4 L IS USM. ・ガラスモールド非球面レンズ3枚、UD ※1 レンズ1枚の特殊光学材料を含む14群18枚の光学設計により、高画質と光学系の小型化を両立。. 各種収差を低減。. ・特殊コーティング「ASC（Air Sphere Coating）」の採用により、レンズ面に対して垂直 The RF 14-35mm F4 takes up less room in your bag than the other wide zoom for Canon's EOS R system; the 15-35mm F2.8 measures 5.0 by 3.5 inches and weighs 1.9 pounds.Major third-party lens ithOEk.

canon ef 24 105mm f4 is usm