Playing with Telephoto Lenses

So I went outside a little while ago and started playing once again with my telephoto lens. I had some problems with it a couple of years ago and had been frustrated enough with it to put it down in that whole intervening time... but decided to try again today... and voila!! Crisp, clear pics taken 100 feet from the subject! I photoshopped the squirrel because my light meter didn't quite catch the huge changes in light from sun to shade, but I am very pleased at the moment. Anyway. Here they are.