On Apr 8, 2008, at 12:01 PM, Mark Roberts wrote: > Lucas Rijnders wrote: >> Godfrey DiGiorgi wrote: >> >>> I have the K10D set to capture in PEF format. When I import to >>> Lightroom, I have it convert to DNG on the fly directly from card to >>> computer hard drive ... >> >> That is clear, but is there any reason why you don't set the K10d to >> capture in dng format? That'd save the pef-dng conversion step, >> wouldn't >> it? > > The K10D only saves in *uncompressed* DNG format, so you get fewer > shots > on a card than if you shoot PEF. A further side effect is that if your > preferred archiving format is compressed DNG, then shooting in DNG > format doesn't save you a step at all because you still have to use > DNG > Converter to convert to compressed format. :(
Yes. Importing to Lightroom with conversion to DNG format directly from the memory card does the compression on the fly so there is no extra step. (Another detail: Lightroom doesn't apply compression to files which are already in DNG format on Import. It just moves them to where you've specified and enters them into the catalog database. However, after editing and such, if you export to DNG format it will produce compressed DNG format files.) > Dare I ask if they've fixed this with the K20D? (Does it save DNG > in compressed DNG format?) The DNG lossless compression algorithm is tightly specified and somewhat processor intensive, from what I understand, and 100% compliance with the spec is required for compatibility. For these reasons, Adobe recommends camera makers create uncompressed DNG files in camera. I don't know of any camera producing 'native' DNG files which produces them with the lossless DNG compression. (Hasselblad, Leica, Ricoh and Pentax all produce DNG RAW files; I can't recall any others if they exist just at the moment.) Godfrey -- 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.
