Canon came out swinging when they entered the full frame mirrorless market, with one of their most impressive lenses being the RF 28-70mm f/2 L USM, the first full frame autofocus zoom lens with an f/2 aperture. This has led many to hope that other f/2 zoom lenses might eventually be offered, and their wishes might come true.
[ Read More ](Originally posted by Alex Cooke)