It's really just trial and error. Set ISO to ~800, open the lens all the way, and fiddle with shutter speed to dial it in. Shutter speed is dependent on your zo

It's really just trial and error. Set ISO to ~800, open the lens all the way, and fiddle with shutter speed to dial it in. Shutter speed is dependent on your zoom. If you're using a wide angle lens to catch the whole sky, you'll get ~10 sec of exposure before you start to see trails, it you're zoomed in, it may be as low as a half second. If you've dialed in the shutter speed to not get trails and the moon is too bright, lower the ISO. Just take a few test shots, dial it in, and then take 3-5 shots in succession and stack them in software.