"Why would the film test have to be done on site?"
This is a good question. Even just going to a similar setup would work. Wouldn't have to be Fajada Butte.
"You just need to know what the exposure for moonlight is with the film you're using under similar conditions (phase of the moon, cloud cover)."
If you are planning on shooting on Dec. 15, then it's kind of late for that, as the moon is new right now, and there will not be a day before the 15th when suitable testing could be done as even the couple nights before full moon, the moon will have risen before sunset.
But you may want to try some test shots the night before after sunset, the moon will be higher, and about the same brightness, so all you should have to do is account for atmospheric effects. My calcs indicate the moon will be about 14 deg above the horizon 30 minutes after sunset on the 14th and about 4 degrees on the 15th.
Thanks for the paper link above - I was goingto ask if it was at Chaco.
Kirk
Bookmarks