I rattled off a few shots at a Female Cardinal mid day and in spite of having 2 full stops of negative exposure compensation dialed in, the overhead sun was so intensely bright that the bird was still terribly overexposed...couldn't salvage any color / unusable. So I decided to experiment with just how much cropping I could get away with on the NEX-7, and to my complete surprise I was able to bring it all the way up and still hold all the detail. Sony NEX-7 ISO400 Canon FD 300/4.0-L Canon FD 2x Tele-Extender for a total of 600mm F4.0 1/200 Tripod & remote And the little bird was 40' away, not 3' feet away from a picnic table or something. I can't believe the clarity / detail going through all that glass, and then being severely cropped. Here are the photos...original capture and then the super crop.