Archived posting to the Leica Users Group, 2012/05/11

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Subject: [Leica] Leica Monochrome
From: tgray at 125px.com (Tim Gray)
Date: Fri, 11 May 2012 14:21:09 -0400
References: <CAK1iPBQMPjWK1iJ56ZaxWntAf5ZhquuR6acJ8GQHxamrTXYLmQ@mail.gmail.com> <CAFuU78cKb3dmQ-HMtaH7MYmkBM4w-21-kH=goeHxysOutcy8PQ@mail.gmail.com> <1074B35A-5AE9-4FE8-91DB-4A3FB5289B0B@btinternet.com>

On May 11, 2012 at 08:02 AM +0100, Frank Dernie wrote:
>Probably delightfully small, considering there is no chrominance data, 
>only luminance. Probably about 1/3 the size of an M9 file????

Should be roughly the same size.  M9 DNG files only store luminance data 
as well.  Just that each piece of luminance data is from a pixel behind 
a filter of ONE of R, G, or B color.  In other words - M9 color DNG is 1 
x 5212 x 3468 pixels, just like the M-M should be.  Tiffs made from 
those DNGs would be three times larger for the M9 since they would be 3 
x 5212 x 3468 bits of data.  Of course, if you make an RGB tiff from the 
M-M, it will be the same size too, so make them grayscale tiffs to save 
space.


In reply to: Message from ausdlk at gmail.com (David Keenan) ([Leica] Leica Monochrome)
Message from lew1716 at gmail.com (Lew Schwartz) ([Leica] Leica Monochrome)
Message from Frank.Dernie at btinternet.com (Frank Dernie) ([Leica] Leica Monochrome)