I'm getting more into wildlife and would like to know what glass you are all using to get the job done.
Myself I'm testing with my 70-200 f/2.8 with 1.4x-2x converters for now. Just learning how to get the best out of this set-up. But recently I've been looking at the new Sigma 150-500mm. Would be nice but don't know yet if I'll make the jump or not.