Archived posting to the Leica Users Group, 2005/01/22

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Subject: [Leica] 20D B&W
From: s.dimitrov at (Slobodan Dimitrov)
Date: Sat Jan 22 09:07:42 2005
References: <002201c50081$fbd48fc0$>

Well, here's the rub. When I first postulated that it would work just 
fine, it was from my experience with images from B/W 4x5 negs. Hence, 
hardly a valid conclusion that could be applied universally. The sample 
I used last night was from this digital image;
Now this was whole different animal.
You're more than welcome to play with settings of the image.
S. Dimitrov

On Jan 22, 2005, at 4:57 AM, B. D. Colen wrote:

> 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:
> [] 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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Slobodan Dimitrov

In reply to: Message from bdcolen at (B. D. Colen) ([Leica] 20D B&W)