Question
In the June 2011's Popular Photography magazine (Canada, hard copy, pg. 90) in an article titled "Star Power", on a one page overview of the Canon 70-200mm f2.8L IS II USM, the author (Julia Silber) claims (when talking about optical sharpness at 70, 135 and 200mm) that "While a significant improvement over its predecessor, which never rose above Very Good, its numbers were slightly below the comparable Nikon and Tamron glass, which scored excellent at all focal lengths."
I am assuming the predecessor could be any one of the Canon L 70-200mm, likely the f2.8 IS version. I don't own this lens and am still in the process of gathering information on the f4 (no IS) version which is the only one I will be able to afford but... So far all I have read was excellent when it came to the optics of these Canon lenses.
The question is: Which Tamron lens that is "excellent at all focal lengths" is the author talking about? Can someone point me to a good review or share their thoughts? (Purely optical quality preferably)
Answer
The author had to be speaking of the Tamron 70-200mm f/2.8 Di LD (IF).
The answer is no, this lens is not superior to the Canon 70-200 f/2.8L IS USM mkII. Canon would never sell a single one if the Tamron was superior, considering the Canon runs about $1600USD more in price.
Some reviews of the Tamron:
I think that the Tamron in its own right is a very nice lens, and I have seen many people use it before. But it cannot hold up to the Canon is rugged professional use and it is not going to be nearly as fast for autofocus.
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