Archived posting to the Leica Users Group, 2013/10/27

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Subject: [Leica] M9 gotcha
From: red735i at (Frank Filippone)
Date: Sun, 27 Oct 2013 12:10:27 -0700
References: <682AEF14A4CABCC240025B87@Visible-Trout.local>

Me too..... Just changed the M9 setting...... uncompressed....

Everyone said it made no difference to final output..... But saving ALL the 
sensor information is really important.....

Frank Filippone
Red735i at

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".

In reply to: Message from reid at (Brian Reid) ([Leica] M9 gotcha)