Archived posting to the Leica Users Group, 2007/04/03

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Subject: [Leica] Very very odd behavior of M8 and Adobe Lightroom with DNG and TIF files
From: clive.moss at gmail.com (Clive Moss)
Date: Tue Apr 3 13:42:30 2007
References: <C238784B.9F75%lug@steveunsworth.co.uk>

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.
...

Replies: Reply from lug at steveunsworth.co.uk (Steve Unsworth) ([Leica] Very very odd behavior of M8 and Adobe Lightroom with DNG and TIF files)
In reply to: Message from lug at steveunsworth.co.uk (Steve Unsworth) ([Leica] Very very odd behavior of M8 and Adobe Lightroom with DNG and TIF files)