Archived posting to the Leica Users Group, 2011/08/13
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Take a look at the Gretag Mcbeth color checker, a device used by many to record the light color at the scene of the shot. The color checker not only contains multiple variations of gray, it also contains different color squares to make the "white" balance warmer or cooler. The camera white balance may be close, but is not usually what I end up with. One changes the white balance multiple times to obtain the white balance and colors one wants in the final image. It's a matter of control over your medium if you want it. If you don't fine, but don't turn up your nose and imply it's ridiculous that anyone would want to do what you don't... As for Herb's original question, the white balance chosen (either by a standard camera setting or creating your own custom raw file, which you can do in the M9) is attached with the raw file and that is what the raw converter uses as "white". But as Richard said, in raw you can easily change what is associated with that raw file. My understanding is that though many say RAW is direct output from the sensor, it really isn't because it has to be interpreted from 0s and 1s into colors. So what you set the camera to tells the raw file what "white" is. You can then correct if needed/want to. But I have a feeling this isn't what Herb was asking.... Bob Adler Palo Alto, CA http://www.rgaphoto.com ________________________________ From: Robert Meier <robertmeier at usjet.net> To: Leica Users Group <lug at leica-users.org> Sent: Sat, August 13, 2011 8:49:42 PM Subject: Re: [Leica] M9 color balance It was the 'again and again' I was questioning. On Aug 13, 2011, at 10:40 PM, Richard Man wrote: > Because there may not be one correct white balance? e.g.indoor with > multiple light sources. > > That's besides the point though, the point is that the raw file data > is not changed, whether it's WB, or cropping, or dodge and burn etc., > if you use something like Lightroom, Aperture or something similar. > > On Sat, Aug 13, 2011 at 8:36 PM, Robert Meier <robertmeier at usjet.net> > wrote: >> Why on earth would anyone want to change the white balance again and again >> in post processing? >> >> >> On Aug 13, 2011, at 10:33 PM, Richard Man wrote: >> >>> That's the beauty of a raw file, even if the WB setting is tagged to >>> the file, it does not change the data in the file itself, so you can >>> change it again and again in post processing. >>> >>> On Sat, Aug 13, 2011 at 7:31 PM, Herbert Kanner <kanner at acm.org> >>> wrote: >>>> >>>> Not true. I saw the rendering of the DNGs three ways. First, which an >>>> application called "Just looking" which directly displays a DNG", >>>> second, >>>> a >>>> contextual menu on the Mac which produces something called "Quick Look" >>>> whose appearance is the same as the first thing I just mentioned, but it >>>> works quicker, and, third, the appearance in LR3 before I apply any >>>> corrections. >>> >>> >>> >>> >>> -- >>> // richard <http://www.imagecraft.com/> >>> // icc blog: <http://imagecraft.com/blog/> >>> // richard's personal photo blog: <http://www.5pmlight.com> >>> [ For technical support on ImageCraft products, please include all >>> previous replies in your msgs. ] >>> >>> _______________________________________________ >>> Leica Users Group. >>> See http://leica-users.org/mailman/listinfo/lug for more information >> >> >> _______________________________________________ >> Leica Users Group. >> See http://leica-users.org/mailman/listinfo/lug for more information >> > > > > --// richard <http://www.imagecraft.com/> > // icc blog: <http://imagecraft.com/blog/> > // richard's personal photo blog: <http://www.5pmlight.com> > [ For technical support on ImageCraft products, please include all > previous replies in your msgs. ] > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information _______________________________________________ Leica Users Group. See http://leica-users.org/mailman/listinfo/lug for more information