[Leica] 20D B&W

[bdcolen at earthlink.net (B. D. Colen)]

I have to be right once and a while...:-)...But while you're playing,
see if you think I'm right about shadow detail in low-light digital
images compared to film. I think that one of the great little secrets of
digital may be that it is the king of no light photography - assuming
that one has glass to gather whatever light there is...Yes, there is
noise in these areas, but there is detail....

-----Original Message-----
From: lug-bounces+bdcolen=earthlink.net@leica-users.org
[mailto:lug-bounces+bdcolen=earthlink.net@leica-users.org] On Behalf Of
Slobodan Dimitrov
Sent: Friday, January 21, 2005 10:19 PM
To: Leica Users Group
Subject: Re: [Leica] 20D B&W


I just played with an image that has problems at both ends of the 
exposure, switching from color and BW.
You're right about the illusion of visual acceptability.
S. Dimitrov


On Jan 21, 2005, at 1:47 PM, B. D. Colen wrote:

> I think that it looks better, Slobodan, because "grain" is more 
> acceptable in bw - and because the noise isn't seen as color speckles.
>
> One way to reduce noise in low light - to answer Adam's question - is
> to
> routinely OVER expose by about 1/3 ev in order to make sure that you
> don't UNDER expose. I know this runs counter to all the digital advice

> -
> expose digital like slide film, exposing for the highlights. At 1/3 ev
> over you're unlikely to really blow out the highlights, and you're
less
> likely to underexpose. And underexposure causes a huge increase in
> noise.
>
> Ironically, however I am absolutely convinced that there is more 
> detail in the shadows in digital exposed in low light than there is 
> film. I have seen this time and time again.
>
> B. D.

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