Quote Originally Posted by Aloha_Shooter View Post
...it's hard to beat the Canon 100-400 UL IS L-series.
Do you have the new version or the old dust pump?

I rented (Lens Rentals) and took some incredible shots of the space shuttle back in the day with the dust pump version of the lens. Really liked it and would like to add the new version to the stable some day.

O2