[Leica] D4 High ISO

[cummer at netvigator.com (H&ECummer)]

Hi John,
Thanks for the link. I read the discussion a couple of times to try and 
understand its application to real world photography and decided it was of 
limited use to me.
Fact is on my D800E and the D700 before it - I set the auto ISO to 6400 - 
and concentrate on keeping the shutter speeds up to freeze action while 
keeping the aperture at a level to maximize or minimize depth of field 
according to what I want.
The results speak for themselves - my Indian tiger pictures (D700) and my 
recent eagle pictures (D800E). In my experience trying to keep a D800 at ISO 
1600 or less "to keep good colour" to the detriment of shutter speed or 
preferred aperture would not produce the most useable pictures. Also, 
reading the comments, I wonder if such a restriction really applies to 
pictures shot in RAW. Anyway, thanks for the link, but I won' be following 
its advice. Really enjoy your monochrome pictures by the way - even if I 
don't comment on every submission I do view them faithfully.
Bests
Howard
Date: Sat, 1 Jun 2013 08:40:58 +0000
From: John McMaster <john at mcmaster.co.nz>
Subject: Re: [Leica] D4 High ISO
To: Leica Users Group <lug at leica-users.org>
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        <80F9701439F20347874CE5E4E03C22E9C5583DCC at WhizzMAIL01.whizz.org>
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Found it
http://www.luminous-landscape.com/forum/index.php?topic=78677.msg632965#msg632965

john

> -----Original Message-----
> 
> I have been trying to find a link to a message on the LuLa forum I read 
> this
> week, it was scientific testing of colour response with cameras at 
> increased
> speed ratings. To keep good colour you should not take a D800 over 1600asa,
> I think it was higher for the D4 and effectively unlimited on the Sony RX1,
> once you went over a certain level (they were response graphs) the colour
> depth dropped.
> 
> john