Re: sjphoto resolution (Was: Digital Cameras)

Robert Hildebrand <hildeb@gte.net> · Fri, 09 Jul 1999 11:02:29 -0700

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Projecting a slide onto a flatbed scanner is a grate idea.&nbsp;&nbsp;&nbsp;
You would have to&nbsp; place a translucent paper over the
glass of the flat bed for the image to be projected onto.&nbsp;&nbsp;
The image would blur out as the
scanner tried to see
the image through the paper or plastic.&nbsp; It would be something
like trying to photograph&nbsp; a scenic view by
photographing&nbsp; the ground glass of the view camera.&nbsp; Well,
maybe the idea isn't so good after all.
Robert H.
 &nbsp;
 &nbsp;
"Rafe B." wrote:
<blockquote TYPE=CITE>At 09:19 PM 7/8/99 -0400, Jim Davis wrote:
>David:
 >I gave much thought to the scanner idea on the back of a 20x24 graphic
 >arts camera but ran into problems. I don't remember what the problems
 >were right off hand. I talked to several scanner people and they thought
 >that turning the scanner on its side would cause problems with the
way
 >the scanning head traveled.
 >
 >I have a good 20x24 graphic arts camera I would like to do this with.
If
 >you have any good ideas on how to make it work let me know.
This is another idea that's come around before,
 but in a slightly different context.&nbsp; Folks were
 suggesting that a slide scanner could be made by
 projecting a slide onto the surface of a flatbed
 scanner.
Your idea actually may turn out to be more
 feasible, but you would likely have to slow
 the scanning mechanism way, way down in order
 to get a reasonable exposure of the CCD array.
 And of course, the internal light source in
 the scanner would have to be disabled.
Flatbed scanners are dirt cheap these days --
 why not just buy one and give it a whirl?
(Of course, where are you gonna get 120 VAC
 out in the sticks?)
rafe b.
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