Archived posting to the Leica Users Group, 1997/09/26
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Jim Brick wrote: > > At 11:05 PM 9/25/97 -0700, I wrote: > > > >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 > > > > I should add some explanation. The full moon is 100% bright, no dark part, > except the man-in-the-moon's face :-) . Like a photographer with the sun at > your back. No shadows. <Snip> Sorry if off topic but since we're working this lunar exposure thing I was wondering how NASA had the astronauts calculate exposure for the lunar landings. Certainly, sunny 16 does not apply since there is no atmosphere. And, I don't believe, the Lunar Hasselblads had built-in metering. I welcome the knowledgeable responses of the LUG. Again, sorry that this is off topic. But, knowledge is knowledge. Carl S.