Re: Digicam

[Arthur Entlich <artistic-1@xxxxxxx>]

No, the grain is the mechanics of the image.  Note my comment about a 
blue sky in a previous posting.  I would hope you wish to best represent 
the image you saw pre-film.  The fact that the camera introduces (via 
the film) all sorts of artifacts in order to represent that image by 
chemical means, doesn't mean that accurately reproducing those artifacts 
makes the image a closer representation of the pre-camera (or pre-film) 
image itself.  Why would you want to reproduce the reproduction "well" 
if you had a choice of reproducing something that more closely 
approximated the original pre-film scene?

Art

SKID Photography wrote:

> Kennedy McEwen wrote:
> 
> 
>>In article <3D03808A.5E1C7F20@bway.net>, SKID Photography
>><skid@bway.net> 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
>>
> 
> But I think the grain *is* the image, so we agree to disagree.
> 
> Harvey FErdschneider
> partner, SKID Photography, NYC
> 
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