Looks like a ceremony lens, but I don't feel it really is; with 24-70, 28-70 and 24-105 already existing, a 35-120/150 f2.8 would have been much more sense in focal lengths differentiation. I'm pretty sure if Samyang and Tamron can do it, even starting at f2 on the wide side, certainly Canon could have done it at constant f2.8 A lost occasion I own the RF 24-105 mm f4L IS USM and the RF 24-70mm f2.8L IS USM and recently sold the RF 24-240mm. Just why Canon would produce a 24-105mm f2.8L I’m not sure but I’m unlikely to buy it unless it really does replace the RF 24-105mm f4L and the RF 24-70mm f2.8L by a. Still being relatively compact and b. At a minimum as optically good as Having the EF 24-105 F4 and the 24-70 F2.8 and the extra-length vs faster lens dilemma. Often took both for FOMO. Used the 24-105 outdoors and the 24-70 indoors. Now there is the RF 28-70mm F2 vs the RF 24-105 F2.8 dilemma. Both are a tank of a lens. RF 28-70mm F2: 1.43 kg RF 24-105mm F2.8: 1.33 kg With eleven aperture blades and a large f/2.8 aperture, the RF24-105mm F2.8 L IS USM Z produces a beautiful, almost circular bokeh effect — even when stopped-down. The wide aperture also allows for faster shutter speeds in low light situations and helps prevent subject blurs. Sony 300mm f/2.8 GM Review vs Canon 100-300mm f/2.8: Prime vs Zoom ; WATCH BEFORE YOU BUY! Canon 10-20 f4L RF REVIEW (vs Canon 11-24) Canon’s MOST EXPENSIVE and LONGEST Lens EVER!!! $20,000 RF 1200mm F8 REVIEW ; INCREDIBLE!!! Hello Canon Forum People here my post to ask an opinion about something that hasn't been mentioned in any review, forum or discussion. I am a happy owner of a 24-70 F2.8 (mark I) since many years. has been a gr8 companion in combination with the 70-200 F2.8 Although with years i am getting ti 105 Reviews. Key Features. E-Mount Lens/APS-C Format; Canon RF 24-105mm f/2.8 L IS USM Z Lens (Canon RF) B&H # CA2410528IS MFR # 6347C002. 11 Reviews. Key Features. Sure to intrigue a wide variety of photographers and filmmakers, the new RF 24-105mm f/2.8 L IS USM Z comes with a range of features including: Constant length while zooming. Manual aperture ring XIiglw.