>If you want to do shots like this, you really need a 300 mm >lens absolute minimum. I started out with the 55-200mm like >you, and my first upgrade was to the 55-300. My next upgrade >will be to the Sigma 150-500.
I think that may be the next step if I don't get it worked out. I just expected to see a little more drastic difference between the 5100 and the canon but maybe it was the operator.