Well here's my test shot of the full moon from the other night.
I was too lazy to get the tripod out so I rested the camera up against something and took the shot.
Quite happy with how it turned out, I just hope conditions are going to be just as good on eclipse night.
Hope you like it.
Details:
Canon 20D, 300mm + 2x teleconverter at f/5.6, ISO 100 @ 1/1250 sec exp.
Andrew - excuse my ignorance. Is that full frame (hardly cropped?). And I did read correctly - 1/1250 sec exposure! That seems very short - I obviously have a lot to learn about DSLRs. Why did you have to rest the camera (OK, I know - to ensure the Moon was nicely framed - you are at fl of 600mm? !!!)
If i remember correctly. Standard exposure of the moon is 1/ISO shutter @ f/11
So the shutter is 3 1/3 stops faster than needed and the aperture is 2 stops larger than f/11. So the moon ends up being slightly underexposed. Which is ok, as it gives more detail, to save blowing out the highlights.
The reason to go for such a high shutter is to minimise camera shake, seeing as it was being handheld. and at 600mm + 1.6 focal length crop due to the smaller sensor on the 20D, ends up being 960mm focal length. And the rule goes for that.. 1/focal length for shutter speed to eliminate shake.