Guy Mancuso
Administrator, Instructor
From all that I know from renting and/or owning both of them. At 24mm the 16-35 is better and at 35mm the 24-70 is better. Most zooms its either the wide end or the long end will be the worst performers and usually the wide is it but in this case the 16-35 is better in the 16-28 range and the 24-70 is better in the 28-60 range. It has issues on both ends. Which actually is pretty typical. Are they really bad , no but you will have to stop down. The 24-70 distorts pretty heavy on the 24 side. Overall as a zoom. I think most folks would say the stronger one is the 16-35, why i decided to buy it. I do need a good 35mm focal length and i am going to address that with a prime at some point. But I want to fully test my 16-35 coming before I make a call on that. I did rent it two weeks ago and liked the lens.