These are images of a dollar bill 25 feet away. The results of the eyepieces versus the prime-focus are quite stunning.
Unmodified Quickcam attached to 26mm Super Plossl, that is mounted in a 2x barlow:
Now, this is a Quickcam with its lense removed (CCD exposed), at the prime focus of the ETX. Notice the vast difference in field of view! This essentially turns the ETX into a 1250mm telephoto lense: