Tim Bray wrote: > I have now established, by direct experience experience and net > searches, that Lightroom has problems with K20D DNG's. Basically, > white balance correction seems to work but in fact severely damages > the images. I believe this is the same code as occurs in ACR, so I'd > bet that wouldn't work either. The Pentax Photo Lab software can in > fact correct White Balance. I will investigate further and report > back on: > > - Do PEFs work better? (I'd assume not) > - Can I just do the WB in the klunky Pentax software then switch back > to LR for the rest of the workflow? > > One assumes that Pentax knows about this? -Tim
Yes. Thomas Knoll of Adobe pointed it out in his blog a few days ago. It's an issue with how the K20D calculates the color temperature and tint numbers for DNG (doesn't affect PEF files). The images look fine, as Paul and others have found, but the numbers are wrong. And if you try to change balance with an application that uses the correct numbers you get wonky color. According to one poster on the DP Review Pentax forum (where there was much hand-wringing and rending of garments for a few days), Ned Bunnell has been notified and has notified the engineers in Japan. I'd expect a pretty quick firmware update for this. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
