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[OM] Re: Latitude of exposure with an E-thing

Subject: [OM] Re: Latitude of exposure with an E-thing
From: Bernard Frangoulis <lists@xxxxxxxxx>
Date: Thu, 22 Sep 2005 08:43:51 +0200
>Not really. Every camera has a response curve that is applied to the 
>raw image data before you see it. Some cameras, like most of the 
>Nikons let you create or download a different curve and load it into 
>the camera. It is the curve that is loaded into your raw image 
>regardless of your final image format and you manipulate with your
>own adjustments. You would not like a real raw image. It is very dark.
>

But what you see is not the raw data, it is the 
camera "JPEG interpretation" of the raw data. 
Same thing for the histogram.

For instance, if you set contrast in the E-1 to 
-2 instead of 0, you see a difference in the 
histogram, which shifts slightly to the left, 
allowing you to better assess the clipping of 
highlights (i.e., the clipping corresponds better 
to what it is actually in the raw data, and what 
is recoverable with Adobe camera raw or not). 
However, the histogram in Adobe Camera Raw is not 
modified by this contrast adjustment in the 
camera.

Bernard
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