I'm just about to buy this lens. I know it's stellar optically. But how does it perform with Canon 90D PDAF? Are all focus points usable and is it spot on?
I'm anxiously waiting for the announcement and release of the Canon 90D or the new Canon 80D replacement. Which I know is going to be an amazing camera. We all want canon to bring 4k to the aps-c line up at this price point, though with all the new features we want. I believe it's going to be a...