Archived posting to the Leica Users Group, 2011/09/09
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Thanks, George. Jim Nichols Tullahoma, TN USA ----- Original Message ----- From: "George Lottermoser" <imagist3 at mac.com> To: "Leica Users Group" <lug at leica-users.org> Sent: Friday, September 09, 2011 8:33 AM Subject: Re: [Leica] IMG: More Experiments with ETTR > On Sep 8, 2011, at 1:01 PM, Jim Nichols <jhnichols at lighttube.net> wrote: > >> There is a lot more for me to learn! > > I highly recommend applying some minimal zone system thinking in this > pursuit. > > Simply take a reading of white fabric, with texture, and make an exposure. > It should render as zone V (or IV or VI) depending on your + or - setting. > Then make incremental one stop over exposures until you arrive at the > unrecoverable highlight exposure (no detail in the fabric). An 8x10 card > with textured fabric mounted to it can be a very useful exposure and white > balance tool - which also serves as a reflector. > > This gives far more accurate and useable data re: the useable dynamic > range of your sensor than guessing about where your highlights actually > fall on histograms (which certainly provide only a general indication of > the overall scene rendering). > > George > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information > >