> You could start with the "sunny 16" rule, which states that the correct > exposure for midday sunlight is 1/ASA at f/16. After all, the full moon is > more or less being exposed by the equivalent of midday light. (The "sunny > 16" rule assumes the sky is perfectly clear.) However, that will render the > full moon to appear at 18% neutral gray density, which will most likely make > it appear too dark. Try opening up one or two stops in third stop increment > bracketing on a test to see what you like best in terms of the amount of moon > detail rendered. 1-2 stops "over" works well. If you are after realism of course we have to remember the moon's albedo averages only 11% or so - it *should* look much darker than even a grey card!!!! 1/60 at f11 ... that's where I would start ;o) > If there is atmospheric haze, then it distorts these > calculations. There are many other variables, of course. The biggest factor is the "height" in the sky. A full moon at midnight in summer is as bright as it gets. If the moon is low on the horizon there is all that atmosphere between you and it. _______________________________________________________________________ Freeserve AnyTime, only £13.99 per month with one month's FREE trial! For more information visit http://www.freeserve.com/time/ or call free on 0800 970 8890