Nice! I can't seem to get mine that clear. What zoom did you use?
Cannon EOS 60D (hand held)
lens Cannon telephoto EF L IS Ultrasonic image stabilizer 100-400mm 77m dia set at 400mm
Filter Hoya UV
shutter speed 1/332 (exposure time 1/320)
F/6.3
These next three are the trick
ISO 100 this give less noise in the image
These two prevent the bright glare or over exposure that is typical when taking FULL moon shots
metering mode partial
Exposure compensation -1 step
The original image, which had alot more dark sky than moon, was 5184x3456 jpg 1.2mb 72dpi
I then changed/saved it to/as a tif file, then cropped it to a 860x864 to just include the moon and then enlarged that cropped image to 1200x1206 with 350dpi and saved it as maximum jpg (493k)
You can get even better if you shoot in RAW
