Steve g wrote:
I bought a used G1 for $850 from Adorama. You can figure they will offer you about half that. The first version is pretty good, I have seen reports that the second is better but on what level I can't remember. The lens was for my wife and it's on a Canon T6i. She shot a hawk a good 100 ft away, through a double pane window, hand held at 600 and filled the frame and still got the glint in the bird's eye and the texture of it's feathers. Better than that should be pretty awesome.
Any chance of you posting that hawk shot. I've only been able to get one very good shot through a window and it was a single pane.