Re: Digicam

[Kennedy McEwen <rkm@xxxxxxxxxxxxxxxxxxxx>]

In article <B9298538.2DC8%bluedove@ccountry.net>, byard pidgeon 
<bluedove@ccountry.net> writes
>OK, I'm not a theoritician (nor a beautician)...but, I have two 24X prints
>of the same slide, done on the same large format printer (an old 4 color
>one) using the same inkset and paper.
>One print is very much more "photographic" than the other, looks like a
>grainy photo from a normal viewing distance...the other print needs to be
>viewed from about 3 feet to look "photo".
>The difference...is the scanner. One was done on a desktop scanner (3175
>ppi), the other on an old, literally big as a truck drum scanner, by a guy
>who really knows how to use it.
>I don't know the ppi of that drum scan, but on the print it appears under a
>loupe to be about double the desktop scan...so, probably in the 6K-8K range.
>
>This is a difference you can see.
>
Remember the story about the photographer at the dinner party who showed 
his hostess some photos?  "Wow, you must have a really good camera to 
get photos like this!" she exclaimed.  On leaving later, the 
photographer thanked her for the meal and said "You must have some 
really good pots to make food like that!".

Why assume that the only difference between your prints is the 
resolution they were scanned at?  You have already mentioned that the 
drum operator knew what he was doing - was that skill without value in 
the results?

As I have often said on this forum, the big problem that needs to be 
overcome in scanning is grain aliasing.  Although it probably did have, 
the drum scanner did not need to have had any more resolution than the 
desktop, but would still have produced less grainy results if the MTF 
was properly matched to the sampling resolution and grain aliasing thus 
eliminated.

I assume that the operator had the skill to be able to do this - and 
that skill is a difference you can see!
-- 
Kennedy
Yes, Socrates himself is particularly missed;
A lovely little thinker, but a bugger when he's pissed.
Python Philosophers
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