All,
Thanks, I'd never even heard of digiscoping before!
Michael's link made for some interesting reading; some excellent photos ....
looks like an excellent solution; as well as an excuse to buy a good spotting scope!
....one thing I can't work out is whether you are literally just taking a pic through the scope eyepiece, using a connector to hold the camera in place or if something more complicated is being done...
to try the concept I just tried clamping my binos (10x42)in a tripod, putting my camera against the eyepiece and taking some photos. Vignetting was awful and the camera wouldn't focus sharply.....

..I tried every variable, zooming in, bino eyepiece in for spectacles or out, camera on macro etc...does this mean my camera will be unsuitable for digiscoping...or have I misunderstood the 'camera attachment method?
...I can see I'm going to have to get into my nearest expert shop to answer all this! ..but any thoughts gratefully received!