Digital BW, The Print

Last week I wrote:

> The 5D-II (with the BIOS up to date) shows a window-screen-like  
> pattern of noise when shades are pushed a great deal. This shows up  
> only when I have not given enough exposure to a photo of one of my  
> black dogs, and I must really get everything I can out of the  
> shadows in the raw file.

As a result of a suggestion a couple days ago, I turned off all of the  
"Custom Functions II: Image" functions.  I had assumed that they would  
have no effect on raw files.  I was wrong.  With an image of a wide- 
range scene containing a black dog (Gordon Setter) in a shaded areas,  
I pulled up the shadows, revealing a good deal of noise... but no  
pattern noise.  So that solved my problem.  (The noise was mostly  
color noise.)






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