I had somehow never noticed the lens comparisons in the TOOLS section until this week. I am a little confused as to its operation, however. The first time I looked at it, I was thinking the Nikon version of the 70-200 2.8 IS Mark 2 looked better in the ISO 12233 than the Canon. Tonight I looked again and realized I might just have had it backwards.
Does the little white arrow point to the side being seen at the moment? I had first assumed it was the opposite; that you manipulate the arrow to change the view. One of the lenses is clearly blurry-er and has more CA.
Having just purchased the Canon version, outspending the price of my Canon body by a factor of 4, I do hope the blurry one is the NIKON and not the CANON.