For me, this new 24-105 will be too much extra size, weight, and price over the already excellent 24-105 F4. Yes, my RF 24-105 f4 is an outstanding lens. It's my go-to lens for event photography. Canon EOS R10 RF-S18-45mm F4.5-6.3 is STM Lens Kit, Mirrorless Vlogging Camera, 24.2 MP, 4K Video, DIGIC X Image Processor, High-Speed Shooting, Subject Tracking, Compact, for Content Creators Black Canon EOS R5 Full Frame Mirrorless Camera + RF 24-105mm F4 L is USM Lens Kit, Black (4147C013) GOhC.