DXOMark list of the best glass for the 6D shows both Tamron zooms as the best for the camera... http://www.dxomark.com/index.php/Publications/DxOMark-Reviews/Best-lenses-for-your-Canon-EOS-6D/Best-primes-and-zoom-for-the-Canon-EOS-6DPersonally I'll wait for Sigma to renew their 24-70 (f2 weee!) and dont know if it will happen, but, I hope they relaunch the 70-200 with the new Art/Sport construction soon.
While DxO mark may be good for sensors, the plots at least. I find them to be dubious when it comes to lenses. I mean they were the ones who said the 16-35mm excelled at the edges when used closest to wide open! That the f/2.8 IS was sharper at 200mm f/2.8 than the 2.8 non-IS than the 2.8 IS II! I believe they also claimed the 70-300 non-L was sharper than 70-300L and 300 f/4L!
Hey Canon - are you seeing how EVERYONE on this CANON forum are recommending a 3rd party lens? Maybe it's time to change something.
Quote from: CarlMillerPhoto on July 29, 2013, 07:10:00 PMHey Canon - are you seeing how EVERYONE on this CANON forum are recommending a 3rd party lens? Maybe it's time to change something.+1
From what I hear, I'd give the Tamron a shot instead for sure, well providing you can't manage the 24-70 II which is completely awesome. 24-70 f/4 IS might also be worth a look if you can get one for some many hundreds below the $1500 list.