Quote Originally Posted by Jayson


Thanks Nate. I will check that out. I know you shot with the 400 before you upgraded to the big boy, but did you ever try a TC with the 400?


Jayson


Jayson, I wouldn't suggest putting a TC on the 400. It's already slow and big and doesn't have IS. A 640mm f/8? No thank you. Especially for sports. I shoot with a 7D and 300 f4 w/ no TC, and it's plenty enough reach for me. I often have to back up! As Nate said, rent both and decide. The 300 does MFD at 5' compared to the 400's 11', and that was a deciding factor for me, you'll have to decide if that's important to you.


brendan