Help! I think I need to be saved from myself. I am lusting after the 500mm f/4, but, of course, it is very expensive. I love shooting birds and currently use a 100-400mm with a 7D. I do like the flexibility of the zoom, but often want more reach. I have the 1.4 TC, but can't use it with the 100-400. Is there anyone out there who bought the 500 and regretted it?
Thanks.





