I suggest trying the same raw file in someone else's known-good Lightroom, and trying someone else's known-good raw file in his copy of LR. If the problem goes away in the other person's LR, and the other person's raw file looks shit in his LR, then he has a problem in his LR and will need to do a setting-by-setting comparison with the other person's.
If there's any other result then it's time to stock up on goats because he'll be doing a lot sacrificing to whatever gods sort out this type of problem. Bob > -----Original Message----- > From: [email protected] [mailto:[email protected]] On > Behalf Of Sam L > Sent: 02 August 2010 20:54 > To: Pentax-Discuss Mail List > Subject: Re: Off topic again: Lightroom 2 "coloration" question form a friend > > >On Fri, Jul 30, 2010 at 12:15 PM, Bob W <[email protected]> wrote: > > Is he looking at the raw file straight from the camera, or after any > >editing has been done? If he's looking at it straight from the camera > >then maybe he could try Auto Tone to see if that has any effect. It > >could be that the file from the camera is crap, and the other raw > >viewer is compensating automatically. > > > > if he posts a screen shot somewhere of the same picture in the MS Raw > > viewer and in LR on the same computer we might be able to see how > > different they look. Otherwise we're just stabbing in the dark. > > Steven's response: > > "I am comparing two things here > 1) Viewing RAW/CR2 files directly in Windows Explorer via the MS RAW > viewer > 2) Importing the files straight into LR2 without any modification to > them. > > Unfortunately I don't have the computer with me to provide a screenshot. > But the MS RAW viewer renders the colors nearly identical to the LR2 JPG > output (at least naked eyes cannot discern any difference). The LR2 > screenshot and the resultant JPG on Flickr demonstrate the same difference. > > LR2 seems to interpret the colors correctly but somehow is just not able to > display them correctly. If I use Auto Tone on these RAW (taken on Auto WB > which is generally very accurate in my experience), it does not change the > parameters much at all and the same weird cast is still on the picture. > > Again, importing the very same RAWs into a different computer running LR2, > they all seem fine. > > I wonder if it has to do with the tone curve in the upper right hand corner. > But again, the effects seem to be on how LR displays the picture and not on > how it understands the picture or exports it." > > > > Larry Colen Wrote: > > I ran into a similar problem. All of a sudden the colors on my CRT second > monitor when wonky, almost like the cable got partially > pulled. To shorten > a long story, a software upgrade of the OS wiped out the color curve for the > second monitor and I had to do the > > Spider2 Express two monitor pavanne > to get it back to reasonable. > > To which Steven replied: > > "Partially pulled cable is a great description for it - except that it only affects > LR2 and nothing else. Not even Photoshop Elements." > > --------------------------- > Sam > > -- > 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.

