So I shot yet another engagement session yesterday and, although I absolutely love the 6D's high ISO capabilities and know it can handle it, I find myself want 2.8 more and more. f4 just doesn't feel wide open enough in a lot of situations. Not only that, but I was getting a lot of soft photos with my Canon 50mm 1.4 even stopped down and feel it could also take the place of this lens in quite a few situations.
Anyway, enough ranting. I'm wanting to find out if anyone has experience with both and would love to hear pros and cons of the Tamron, especially focusing and IQ. I've read and watched reviews and really find very few faults with it but would still love some first-hand experience, especially from those that shoot portraits, engagements and weddings. The only thing I'll occasionally miss is the 71-105 focal range. I don't have a tele but do use my 85mm quite a bit and it works great. And no, I can't afford both at the moment.