For those of you sports shooters who use the Canon EF 400mm f/2.8 lens, three questions:
1. Do you ever use the 1.4 TC (or the 2.0) with the 400?
2. When do you use it [THE 400 PLUS THE TC] (football, soccer, baseball from the bleachers, other) ?
3. What do you think of the results when you use the TC?
Feel free to post some 400 + TC images if you have them handy.





