Got it used for a pretty good price. The story behind it is that I traded my 70-200 f4 IS to the f2.8 IS version so I can use the 2x TC and still keep AF @f5.6.
Didn't really have a chance to take it out for a spin, so some mundane pics follow.
I'll take it!!! It's great that this "little" thing gets me to 400mm...I only envision using it outside in good lighting. So stopping down a couple, I can get some decent shots. Certainly happy with the results!!!
Shot #1: Cat eating some yummy stuff. 140mm, Wide open, ISO800, regular indoor lighting. Just to see how it looks at the "short" end. 20ft away.
Shot #2: Cat eating again. 400mm, Wide Open, ISO800. 20ft away.