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Yes, Socrates himself m9ight have liked that answer but the real question might well be "was the mighty one involved in any way with the art of the Photos Graphos fraternity? A simple question and nothing more than that! ----- Original Message ----- From: "Kennedy McEwen" <firstname.lastname@example.org> To: <email@example.com> Sent: Sunday, June 09, 2002 7:02 PM Subject: Re: Digicam > In article <3D03808A.5E1C7F20@bway.net>, SKID Photography > <firstname.lastname@example.org> writes > >Kennedy, > >But now we are getting into that whole theoretical detail from lenses > >and film vs. > >the information contained in the grain, and the fact that the grain is > >both random > >(fractal) in arrangement and form whereas pixel arrangements are in a > >grid. So to > >reproduce (in a scan) that random information, it takes a lot of rectangular > >pixels. > > > That makes absolutely no difference to the conclusion - the fact is that > the image detail on film has run out LONG BEFORE the rectangular > pixelation becomes an issue at 8000ppi, let alone 40kppi. > > The random nature of the grain may cause aliasing issues if the 8000ppi > scan is taken without any oversampling, since a square pixel has a > resolution well beyond its closest packed sampling density, as I have > discussed on this forum on many occassions, but that is another matter > and easily overcome with suitable scanner design - indeed it is > difficult to avoid in such high resolution devices. > > Film grain is NOT the image, merely the "bricks" that the image is > constructed from - and you don't need to resolve the bricks to see the > wall. > -- > Kennedy > Yes, Socrates himself is particularly missed; > A lovely little thinker, but a bugger when he's pissed. > Python Philosophers > - > Turn off HTML mail features. Keep quoted material short. Use accurate > subject lines. http://www.leben.com/lists for list instructions. > - Turn off HTML mail features. Keep quoted material short. Use accurate subject lines. http://www.leben.com/lists for list instructions.