Archived posting to the Leica Users Group, 2006/09/19
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]On Sep 19, 2006, at 9:26 PM, G Hopkinson wrote: > Robert, I understand the linear part and the 50% of tones within the > first (brightest) stop. I don't follow why UNDER exposure > causes loss in that stop. Isn't the underexpose method meant to > preserve as many of those tones as possible? Then you are going to > adjust your tonal range after capture so that the 256 possible are > chosen from the ones you have captured. In other words, a nice > smooth histogram with no gaps after you manipulate the image. I think > this is the key point not being considered and resulting in > the polarised viewpoints. Not what the file will look like un-altered > afterwards to compensate for the underexposure, but how many > tones you have captured. If a "normal" exposure results in clipping > say half of the brightest f stop approaching 255, aren't you > losing far more tones than clipping half a stop from the bottom > approaching 0? > > There must be something I am missing here, and I really want to > understand. > > Cheers > Hoppy No Hoppy you're not missing anything. Doug Herr Birdman of Sacramento http://www.wildlightphoto.com