I've tried to set the colour balance in this without much success. Initially I made the mistake of pointing the camera away to take the balance off a grey card; my mind is like mud sometimes.
I found this on the internet probably taken with a flash.
http://www.mikekemble.com/daytrip/li...ichfield45.jpg
Generally I would like to know how to set custom colour balance for say the moon; do I turn the camera pointing away from the moon to get the light on the card, or what?