Archived posting to the Leica Users Group, 2013/10/27
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Brian I for one did not know that either. I took a Leica sponsored M9 course in Toronto a coupe of years ago and there was a lot of discussion centred around this topic of using the compressed vs uncompressed settings and I remember the Leica USA rep saying it was always best for optimal picture quality to leave the camera in uncompressed mode as that was what the Leica engineers developed for best quality. However there was absolutely no mention of the bit rate dropping as a result. Interesting and thanks for pointing out! Scott > On Oct 27, 2013, at 10:45 AM, Brian Reid <reid at mejac.palo-alto.ca.us> > wrote: > > This weekend I learned, the hard way, that if you ask an M9 to produce > compressed DNG files it only keeps 8 bits per pixel. If you want the full > 14 bits per pixel that the sensor records you have to store uncompressed > DNG. > > I didn't read the documentation as closely as i should have. Not that the > documentation is explicit about this. On page 174 of the English-language > manual it says that DNG compression is achieved "by non?linear reduction > of color depth". > > Foo. Next time I'll get this right. > > > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information