Archived posting to the Leica Users Group, 2007/04/03
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]The files from a card reader are all exactly the same size that's because they aren't compressed. A non-compressed 16 bit file would be a lot larger than 10 meg. Steve On 3/4/07 21:42, "Clive Moss" <clive.moss@gmail.com> wrote: > But the Leica DNGs imported from a card reader are not small - they are > all 10,000+. Otherwise your explanation makes sense to me. > > Clive > http://www.clive.moss.net/blog/ > > > > on 4/3/2007 3:31 PM Steve Unsworth said the following: > ... >> The reason the Leica, and hence the converted, DNG, files are so small is >> that Leica uses a non-linear processing algorithm to convert the data from >> the sensor to 8 bits. This is then expanded back to 16 bits when the file >> is >> opened - it's a bit like dbX recordings from the late 70s/early 80s if you >> remember those that extended an LPs dynamic range by compressing the >> recording before pressing and then expanding it again on playback.