I can't figure out which one I want to buy. I keep going back and forward. I have a tamron 28-75 2.8 and I also need a telephoto. I rented a 70-200 2.8 IS II, but I know its no way I can't pay 2k + for a lens. The wife is letting me buy a mark I verson or the 24-70 2.8. People keep saying in all the post the image quality are very close and its not worth paying 900ish more for the canon.



