On top of my Canon Mk2 lens wants (which now I've decided to stick to the Tamrons) now I really want to add an 85 prime back to my kit. I wasn't too happy with the Canon 85 1.8. It took 2.2 to make it reasonably sharp for my taste. My friend has the 85 1.2II and I've used it from time to time however the AF speed leaves me to desire more.
I want to try out the Sigma 85. From the samples I've been looking at and the reviews it seems to be the economical choice.
My only worry is the AF. Is this going to bring back the issues with the 30mm, it took me 4 copies to get a good one.