Thanks! I will let you know...I got it a few days ago, and will have it installed soon. That's good advice on the teleconverter...I wasn't thinking about the 2 stop loss on the 2x. I have the nikon 70-200 f2.8. I LOVE that lens...I use it for motorsports, mostly. Was worth the arm and leg I paid for it! As I get better at finding birds, perhaps I will get better at not scaring them away and be able to get a little closer to them
. I've been shooting a lot of the herons, ducks and bigger birds. I love to catch them in action. I just love those super sharp pics of the birds when I get one. Thanks again!