Digital BW, The Print

When I was with Fairchild Weston some years back I heard one of the guys 
from the our sister division Fairchild Camera and Instrument (the people 
who developed the cameras for the U2, SR-71 and others) talk about this. 
With the camera off the SR-71 you could read a license plate of a car 
some 400 kmeters away. Now that's resolution. He also said the digital 
information content - what it would take to build an EO camera to 
compete - was in the 10's of terebytes.

Truman

Paul Roark wrote:

>>>I have now abandoned that approach, but only in part.  Now I find
>>>grain to
>>>be, relatively, a more serious problem than sharpness.
>>>      
>>>
>
>  
>
>>You just need a bigger negative Paul - you need to start at 8x10    :-)
>>    
>>
>
>I actually have an 8x10 head for my enlarger.  However, I used 8x10 mostly
>for internegatives, including digital ones.
>
>I've always thought it would be fun to have one of the spy-plane's huge
>roll-film cameras.  I once read that those puppies resolve 80 lp/mm over an
>entire 8x10 negative area.  Now that's what I call information capture.
>Hmm, how many terabytes of RAM would I need to scan & manipulate that image
>at 4000 ppi (high bit depth, of course)?
>
>Paul
>
>
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