When you view the histogram on your camera, the histogram is based on the JPEG rendering of the photo, even if you're shooting raw. That means that the R,G,B channels shift relative to each other based on the white balance setting, the saturation point changes based on the contrast, etc., even though none of those settings affect the raw file.
What you'd like to see, if you're shooting raw, is a real representation of the raw channels, with each channel hitting the right edge of the histogram when the photosite actually saturates. UniWB, as I understand it, is an effort to find a set of camera settings (white balance, etc.) that makes the displayed histogram come as close as possible to this ideal. On Wed, May 22, 2013 at 11:21 AM, Charles Robinson <[email protected]> wrote: > On May 22, 2013, at 09:37 , Ciprian Dorin Craciun <[email protected]> > wrote: > >> Hello all! >> >> I've been struggling twice so far to obtain the so called "UniWB" >> on a Pentax K-30, but without any "real" success so far. >> > > I'm sorry that I don't have any help for you on this other than to ask: why? > > It sounds like you are going through a lot of work and calculations to > accomplish.. what, exactly? > > -Charles > > -- > Charles Robinson - [email protected] > Minneapolis, MN > http://charles.robinsontwins.org > http://www.facebook.com/charles.robinson > > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and follow > the directions. -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
