I'm in the market for a 70-200 and I'm at a bit of a crossroads between these two lenses. My budget will only allow me to buy one or the other. I can't seem to find any articles or comparison videos between these two lenses. I know the Tamron G2 pars up against Canon's newer version of the 70-200 (mark 2), but does it outperform their mark 1 version? Should I cut my losses and buy the newer Tamron G2 or is the Canon 70-200 2.8 Mark I do just as well, if not better?