Canon RF 24-105L IS USM Autofocus. Autofocus with the native RF 24-105mm F/4L IS is brilliantly fast. It’s just there, instantly. Canon claims that this is the fastest autofocusing combination in the world, and it’s hard to doubt. Canon pioneered the Nano-USM technology employed in this lens nearly two years ago with the EF-S 18-135mm F3.5 The Canon RF 14-35mm F4 L IS USM ($1,699) is an exceptionally lightweight zoom lens, especially when you realize it's made for full-frame sensor cameras and enables an ultra-wide angle of view. It Re: Canon EF 24-105mm f/4.0L IS USM or EF 24-70 mm f/4L IS In reply to SteveHU89 • 3 weeks ago 1 The EF 24-105mm f/4L IS USM offers a 4.3x zoom ratio, from wide angle to medium telephoto. It is highly portable, weighing just 670g. Fixed aperture The f/4 maximum aperture of the EF 24-105mm f/4L IS USM is fixed throughout the lens' focal-length range, so shutter speeds will not change as the lens is zoomed. Image Stabilizer Reviews. Smartphones; Camera Sensors; Camera Lenses Canon EF 24-105mm f/4L IS II USM on Canon EOS 5DS R vs Canon EF 24-70mm f/2.8L II USM on Canon EOS 5DS R vs Review your product EF 24-105mm f/4L IS II USM 4.7* (528 ratings) avg. customer rating . $2,269 RRP. Open up new viewpoints Everyday zoom lens Canon EF 24-105mm f/3.5-5.6 IS STM Review Canon EF-S 24mm f/2.8 STM Lens Review Canon EF 85mm f/1.4L IS USM Review Canon RF 85mm F2 IS STM Review Canon RF 85mm F1 The Canon EF 24-105mm f/4L IS USM was announced in August 2005 as a lightweight standard zoom lens for professionals. Introduced on the same day as the EOS 5D, it's an ideal match for Canon's 'aff Cameralabs Camera reviews, lens reviews, photography guides NROQGHU.