Archived posting to the Leica Users Group, 1999/12/19
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]George- You're right- it is a guideline, but it has always worked for me. Maybe I am lucky, and live at the right latitude, and in all cases, I bracket- a habit that I don't even consider when suggesting exposures! I also rate the EI of anyfilm I use at i/3 stop less than the package label- I have always shot Tri-X at EI320- to make sure that details are not lost in the toe of the curve. The moon is an unusual situation, as well, in that it is a low contrast subject, in a high contrast milieu- I usually under expose (EI 500) the moon, and overdevelop the film to make the details of it's surface have more contrast. Dan - ----- Original Message ----- From: George Huczek <ghuczek@sk.sympatico.ca> To: <leica-users@mejac.palo-alto.ca.us> Cc: <leica-users@mejac.palo-alto.ca.us> Sent: Saturday, December 18, 1999 2:04 PM Subject: [Leica] sunny 16 bunk and full moon size and other Lunar-cy! > At 11:05 AM 18/12/99 -0500, dwpost wrote: > >Consider the moon as a white sand beach in direct sunlight, and then apply > >the 'sunny 16' rule! Works everytime! > > No, sorry. The "sunny f/16" rule is just a rough guide, and a poor one at > that for photographing the moon. It works only because negatives have > enough exposure latitude to let you get away with it. It is not enough to > produce excellent transparencies. For bang-on negatives you can't always > rely on this sunny 16 bunk either, particularly if you have a subject with > a high brightness range -- you will have to give up either part of the toe > or shoulder of the film's sensitivity. > If you use sunny 16 you will more than likely be underexposing by 1/2 to > 1 full stop. > It is not the same everywhere. It depends on your latitude, altitude, > position of the moon in the sky, and particularly [sic] the amount of smog > (and other atmospheric particulates) where you are. Use sunny 16 and open > up a stop and you will likely be closer to being correct. Bracketing will > get you closer, as will a good spot meter. > > > >