Canon EF 16mm-35mm f/2.8 L II USM Zoom - ok at f/2.8, better at f/4.5 Canon EF-S 18mm-55mm f/3.5 - 5.6 IS Zoom - ok wide open at all focal lengths, better when stopped down one - two stops Canon EF 17mm-40mm f/4 L USM Zoom - ok at f/4, very good at f/5.6 COMPATIBLE LENSES. RED tested the following lenses and confirmed the functionality for use with KOMODO-X: RF LENSES. EF LENSES. Canon RF 15-35mm f/2.8 L IS USM 1. Canon EF 14mm f/2.8L II USM. Canon RF 24-70mm f/2.8 L IS USM 2. Canon EF 24mm f/1.4L II USM. Canon RF 24-105mm f/4 L IS USM 3. Not shown here, but the 10-18mm has the same or even less distortion as does the 16-35mm. Ha! I expect that the Canon 16-35mm f/4 L IS should be the first really sharp Canon full-frame ultrawide, but today, a $100 used Rebel with the new $300 10-18mm turns out images about as sharp as the $1,700 16-35mm f/2.8 L II and $3,200 5D Mark III. I just Uvu53.

canon ef 16 35mm f 2.8 l usm vs ii