Archived posting to the Leica Users Group, 2006/05/15

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Subject: [Leica] B&W analog-digital workflow
From: philippe.orlent at pandora.be (Philippe Orlent)
Date: Mon May 15 10:47:10 2006
References: <C08DC0D8.2DFC3%dr.chippendale@kontakt-mit-linsen.com>

Looks like there's just a bit more contrast in the positive scan  
version than in the negative scan version.
Don't see much difference otherwise.


Op 15-mei-06, om 05:23 heeft Dr. Chippendale het volgende geschreven:

> Adam Bridge wrote:
>> So why use the scanner software at all and just do it in a tool
>> designed for pixel manipulation: Photoshop?
>>
>> Yes, you can adjust the input curves in your scanning software, but
>> that's no different than adjusting the curves in Photoshop.
>>
>> So lots of time spent scanning seems wasted - get the pixels in and
>> then deal with them in Photoshop.
>>
>> I'm totally willing to be convinced this is wrong-thinking but you're
>> going to have to demonstrate why this is the case.
>
> Adam,
>
> You raise exactly the point I was trying  to make when I stated here
> http://homepage.mac.com/chammann/foto/Personal35.html that I scan  
> my B&W
> negatives as positives. I think It does matter how you scan  
> because, like
> any digital recording medium (not different from a digital camera's  
> sensor),
> a scanner  puts the emphasis on the lower half of the light values  
> (the
> bottom half of the histogram). Values in the higher zones get less
> differentiated. So yo get two different tonalities that can only be  
> modified
> later on in Photoshop.
> Case in point: same negative of a rock abstract, scanned as a  
> positive:
> http://www.fotocommunity.de/pc/pc/mypics/515678/display/5652501
> And scanned as a negative:
> http://www.fotocommunity.de/pc/pc/cat/1758/display/5672679
> Excuse thew slightly different cropping. I prefer the tonality of  
> the first
> one.
> Greetings, Christoph
>
>
>
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In reply to: Message from dr.chippendale at kontakt-mit-linsen.com (Dr. Chippendale) ([Leica] B&W analog-digital workflow)