Archived posting to the Leica Users Group, 2007/02/18
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Bob, If you didn't run any corrections in Light Room then the shift at 2500 is major. Sounds like a retest on a tripod so no other variations. I would also ask if they are on version 1.09 firmware on their demo. I still wouldn't worry about it, the correction in LR would be pretty simple even if there were random color shifts. I can say that my sample is not behaving in that manner. Reading between the lines at dpreview over many tests a lot of cameras shift wb as the ISO goes up especially in tungsten, none as major as this shows. Happy snaps in OK Don don.dory@gmail.com On 2/18/07, Robert D. Baron <rbaron@concentric.net> wrote: > > Don Dory wrote: > > > Don't sweat the wb Bob. Shoot in DNG and all will be very well > > indeed. Minor tweaking in the converter of your choice, not much > > different than color film but faster and easier. Forget the jpg's, > > raw is good. > > Don, I should have been more clear. The shots I posted had to be > converted to .jpg to be uploaded but the original shots were > .dng; I have only shot raw files for the last several years. I merely > opened these .dng image files in the beta of Adobe Lightroom and I > immediately noticed the odd (to me) color shift as the ISO had been > adjusted upward when they were made; I did no sharpening or color > management whatsoever. > > To reiterate my original question: > > > One question I have is about the color it produced on my test; I may > > be having brain fade and not remembering something I should know, but > > please take a look at these 4 test shots from ISO 160 to 2500 (you > > can see the ISO of each when you click through from the thumbnails to > > the full size images) and tell me why there is such a color shift as > > the ISO increases: http://www.bobbaron.com/M8TestFeb07/index.htm > > I'm trying to be an observer, not a complainer. I'm just curious as to > 'why'. > > And while we are talking I've got one more question for those of you > with better color vision than me (probably most all of you; I've got > typical male red-green anomalous vision to some small but apparent > degree): I made it a point to include the rack with black LowePro > gadget bags in the right 1/3 of these shots....I assume they contain > some synthetic material and was wondering if they would display the > infamous magenta color cast. Do they? > > Again, I like the camera overall and I'm sure I'll add one to my bag at > some point. These are just questions I'm asking. > > The LUG is one of the few places I can get answers......all kinds of > answers.... ;-) ;-) > > Thanks and best regards, > > --Bob > > > > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information >