This is an image I took three years ago with my 10D and Meade ETX90 telescope. The image hasn't been cropped so the moon is about full frame. The effective focal length is 1250mm at f13.8. I didn't use mirror lockup, timer, or even a remote shutter - which is why is it a little blurry. I have just recently got my telescope back from being fixed, so will try and get a sharper picture.
Cheers Gav