It just goes to show what a good set of people birders are. My lens is out of commission and has been in for repair at Canon (UK) for the last three weeks. I tried to get a record shot with my 50d and a 50-135 - it was a dot in the distance!!. I cheekily asked this guy beside me with a 7d and an 800mm if he would take one for me using my card and he promptly handed over his kit for me to shoot this record image. The downside of this that I now "lust" after the same set-up.