Archived posting to the Leica Users Group, 1997/09/25
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]At 10:39 PM 9/25/97 -0500, you wrote: >At 09:53 PM 9/24/97 -0700, you wrote: > >>The reason it doesn't apply is that as you move twice as far away from a >>subject you will only get one quarter of the light from each square >>centimeter on the subject, but you will also cover 4 times as many square >>centimeters, so the result is that the exposure doesn't change. > >Interesting. But the point is, the sunny 16 rule works with the moon. It's >a subject in bright sunlight. > >============= >Eric Welch - ------------------------------------------------------------- Proven moon exposures: Full moon, clear night, sea level, =sunny 16. Same at altitude, no lights reflecting in the local atmosphere, basically no local atmosphere =sunny 22. Quarter moon =+3 stops. Thin crescent =+5 stops. Ref: "Astrophotography for the Amateur" by Michael Covington. Jim