Hi All, I've had a chance to shoot some birds with lended 50-200 lens from one of my friend who owns it. Usually I Use Canon 1dx+800 and 1d4+500 with my team mates. But frankly i am surprisingly impressed with the results I got with EM1 and 50-200 lens. BIF was a bit difficult since it was my first time use with birds but seems lot more potential. Wish I could have TC to see what the results shows. Want to know more what other potential lens can be used ? Posting few images.