If you want to use teleconverters, the EF 100-400mm L IS II works magnificently on an EF to RF adapter ring, costs much less, is just as sharp and focuses just as close and just as fast, and works great with the EF 1.4× and EF 2× extenders for the entire range from 100-400mm, and you can stack both the EF 1.4× and EF 2× extenders. Canon EF 85mm f/1.4L IS USM (Black) at Amazon for $1,599; Mount: Canon EF Full-frame: Yes Autofocus: Yes Image stabilisation: Yes Lens construction: 14 elements in 10 groups Angle of view: 28.5 degrees Diaphragm blades: 9 Minimum aperture: f/22 Minimum focusing distance: 0.85m Maximum magnification ratio: 0.12x Filter size: 77mm Dimensions The Canon EF 50mm f/1.8 II Lens' strongest quality is its sharpness . Sharpness performance wide open (f/1.8) is decent, but the Canon 50 f/1.8 is very sharp at f/2.8 and beyond. It is slightly sharper than even the Canon EF 24-70mm f/2.8L USM Lens . With an f/1.8 maximum aperture, this is a fast lens. Unfortunately, only five non-rounded Tweet. Buy on Amazon.com From $479.00. Users of Canon's EOS M system got a treat this fall, with the announcement of the EF-M 32mm F1.4. Announced more than a year after Canon's last EF-M lens (the EF-M 28mm F3.5 Macro ), the new 32mm offers a native 50mm equivalent field of view, a metal mount, a focus limiter switch and overall solid Canon EF 24-105mm f/3.5-5.6 IS STM Review Canon EF-S 24mm f/2.8 STM Lens Review Canon RF 24mm F1.8 Macro IS STM Review Canon RF 24-105mm F4L IS USM Review The Canon EF-s 24mm f/2.8 STM is a tiny and super-sharp normal to wide lens for Canon's APS-C cameras. It makes an excellent replacement for any 18-55mm zoom, saving size and weight and adding a fast f/2.8 speed for use in dim light and making your viewfinder brighter. It's tiny, and has fantastic performance. This 24mm lens sees the same angle For about the same price as the EF 24-70mm f/4, you can buy a Tamron 24-70mm f/2.8 Di VC. The reviews I have seen place it between the original EF 24-70mm f/2.8L and the EF 24-70mm f/2.8L II in terms of sharpness. The Tamron, unlike both of the Canon 24-70mm f/2.8 versions, also has Vibration Compensation (VC) which is equivalent to Image 1. I got EOS R right before Christmas and on January 1st finally had a chance to do a shoot in my home studio. I have only EF glass, so the shoot was done with adapter and 70-200 IS II. My observations comparing to 5DMKIII: 1. Adapter is very solid on camera, it feels like extension of the body. 65Hihf.