P3D Re: Scanning Slides

[Dylan The Hippy Wabbit <spacey@xxxxxxxxxxxxx>]

Hi All,

Some one (forgot who already) asked:-

> Has anyone attempted to use one of the small slide viewing (fluorescent)
>lightboxes as a backlight for slide scanning purposes?  Seems to me it
>would work just as well as the device that came with my scanner.  Simply
>place slides down on scanner and lay backlight face down on top, then
scan.
>The small lightboxes (which include diffuser plex) are readily available.

Here's another approach.  Where I work the biologists often want to scan
autoradiographs.  (Think of them as large B+W slides.)  Quite often we get
better results if we put white paper behind the sheet and scan as prints.

Now since the light passes through the slide twice the contrast is
increased, and in colour you may have gamma correction to think about.
All that should be fixable in software though.  Then there is the old
question of the scanner's optical resolution, but it should do for 'on
screen' uses.

Dave Spacey

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Walk tall, walk straight,
Spit the world right in the eye.

-Kevin Godley and Lol Creme


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