Archived posting to the Leica Users Group, 2011/08/13

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Subject: [Leica] M9 color balance
From: hopsternew at gmail.com (Geoff Hopkinson)
Date: Sun, 14 Aug 2011 15:37:37 +1000
References: <p06240800ca6cd45604d1@192.168.1.104> <B358FF6D-68EB-4C9A-87F1-22291E461922@gmail.com>

And to expand on what Leo has said there, the white balance is not set in
the DNG, except as a note in the EXIF.
That is to say your camera's setting there have no effect whatsoever on what
is recorded in the DNG.
The low resolution preview for your LCD (subject to how that is adjusted) is
intended to show you what a default JPG setting conversion may give you
though
Your in-camera setting can certainly be used as a starting point when you
import your files with your Raw converter.

Also of course what you see (as preview) on your computer screen after
processing by your Raw converter will be dependent on its settings too.

In the case of the M9 there is some lens dependent processing in camera due
to the nature of the sensor (eg. for vignetting) and the actual recorded
data has to be corrected quite a bit to produce a homogoneous, symmetrical
output at all.  Nevertheless your in-camera WB is irrelevant as far as
actual data recorded.
I am speaking of course only of DNG files with the M9.

Cheers
Geoff

*"That's an impossible shot, Batman."
"That's a negative attitude, Robin." *



On 14 August 2011 11:46, LeoWesson <leowesson at gmail.com> wrote:

> Herb,
>
> It just affects the jpg preview of the raw file.
>
> Thanks!
> Leo Wesson
> 817.733.9157
> www.leowesson.com
>
>
> On Aug 13, 2011, at 20:36, Herbert Kanner <kanner at acm.org> wrote:
>
> > I made a rather surprising discovery, and wonder whether it is a Leica
> peculiarity or common to other digital cameras.
> >
> > What I discovered was that the color balance setting, available on the
> short "Set" menu, directly affects the DNGs. I always thought that 
> in-camera
> settings were just supposed to process jpegs, assuming that jpegs out of 
> the
> camera are requested. The color balance choices are very close to those
> available on LR3.
> >
> > I had thought that DNGs are as they come out of the sensor, with no fancy
> processing by the camera. Of course, the physics of it suggests that this
> color balance control may be similar to setting of ISO, except that
> different settings are used for R, G, and B. And "settings" could very well
> be a metaphor for the the voltage applied to the sensor elements.
> >
> > My general question directed to y'all is whether this behavior shows up
> on RAW files from other mainline cameras, e.g. Nikon, Cannon.
> >
> > Herb
> > --
> > Herbert Kanner
> > kanner at acm.org
> > 650-326-8204
> >
> > Do not meddle in the affairs of cats,
> > for they are subtle and will pee
> > on your computer!
> >
> > _______________________________________________
> > Leica Users Group.
> > See http://leica-users.org/mailman/listinfo/lug for more information
>
> _______________________________________________
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>


In reply to: Message from leowesson at gmail.com (LeoWesson) ([Leica] M9 color balance)