Don't know if this will work, there is only one way to find out
http://www.flickr.com/photos/21680432@N05/2423121544/
This is a group of shots taken with my Pentax K100D with a 70-300mm flim lens and a Digital X2 AF teleconverter which gives me 600mm.
If i can take such shots with just the camera, i should be able to take even better when i can my telescope up and running.
