I have started a practice of converting my Panasonic GF1 raw files (rw2) to DNG while downloading them. When I make adjustments to the DNGs in ACR (current version) and click "Done," there is a lag time while ACR "updates the image data" (I believe that's what the message says). The wait can be minutes if I have worked on many DNG files at once. By comparison, with cr2 files from my 1Ds2 and the original rw2 files from my GF1, the updating process is almost instantaneous. I have assigned 60% of my 8gb of memory to Photoshop (CS5). I have selected medium-sized previews with my DNGs. I have not imbedded the original raws in the DNG. Is there something I can do to speed up the processing of DNG files? Why would DNGs process so much more slowly than the original cr2 and rw2 files? Thanks.
Is there something I can do to speed up the processing of DNG files?
Yes...you can uncheck the option to Update Embedded PJEG previews
That is ONLY needed when your DNGs are being used by a 3rd party viewer that depends on the DNG Preview to display the image. It isn't needed for Bridge. The DNG's XMP settings WILL get updated even with the preview off and the Bridge thumbnail is very quick to update. That's why the RW2 files update so quickly, just the XMP is getting updated.