Archived posting to the Leica Users Group, 2011/09/09
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]On my D1x, the histogram picture can be modified to show blown out areas as bright red on the screen... basically the concept of showing level 255 of white in an 8 bit system....( in the olden days it would have been called pegging the meter... Kids don't know about analog meters, so this expression is a bit lost in history.....). George.. would this allow the same degree of measurement, but in the field quickness? Frank Filippone Red735i at earthlink.net -----Original Message----- From: lug-bounces+red735i=earthlink.net at leica-users.org [mailto:lug-bounces+red735i=earthlink.net at leica-users.org] On Behalf Of George Lottermoser Sent: Friday, September 09, 2011 6:33 AM To: Leica Users Group 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