Marc,
I used to have a younger brother, then he bought a Canon. No longer in the family as both my older brother and I are lifelong Nikon owners. LOL
Little bro has lots of pics on the airliner sites that he took with some really big (expensive) Canon glass. He must have 4-5 of those gray colored lenses laying about. I almost switched at the last camera body because he had so many lenses...then came to my senses.

I'm hoping this lens ends up being reasonably sharp thru it's range and across the entire frame as it's replacing a cheezy Tamron plastic barreled lens of similar range with some probs. I have a 60mm Micro Nikkor for the close work so this is just a general purpose one.