Hey guy's, so I mainly shoot airplanes, I am wondering what would be the next good addition would be, I currently have a T2i and XSi for my bodies. For my lens lineup 18-55, 55-250 and 100-400.
My next major lens I would like to get someday is the 70-200 f/2.8. But that is a long way away, so what would you guys recommend. I shoot both airshows and commercial traffic.