Aside from color... Which one of these two would be the better purchase and why? *Main goal is shooting wide open in low light for indoor sports and dance recitals.
Canon 70-200 2.8 IS mk1
Tamron 70-200 2.8 di VC
A new Tamron seems to run around the same as a used mk1... unless I get lucky and hit upon one of those wondrous sales everyone talks about that I always miss... but my luck with non Canon lenses gives me a slight bias towards Canon lenses...
Yes I do WANT IS/VC so am not looking at non IS models and yes I need 2.8 as it I am specifically looking to use it indoors for sports and recitals. Since I am shooting on a 70D I am most likely to be shooting wide open in these situations in order to keep shutter speed up... so comments on it's low light AF performance would be helpful...
But after reading reviews I am not certain I am dialed in on the better option and was hoping someone could provide the info needed (I usually see it compared to the mk2 so wasn't sure how it stands compared to mk1)
*Note* I am purely a hobbyist and do not do this for cash so the mk2 Canon is out of the conversation unless I get lucky and find a used one for cheap as dirt :P