Re: [OM] Slide copying

[Paul Wallich]

At 9:18 AM -0500 1/12/02, Charles Monroe wrote:


>    Has anyone investigated or devised a way to
> use a digital camera with an Olympus slide copier
> to copy slides?
>
>        Possible? Silly?
>
>    Without giving it a lot of serious thought,
> and as I don't have the technical skill or
> background in either digitals or copying, it just
> seemed to me to be a way of getting my boxes of
> old slides onto a CD and using a still unpurchased
> Diggie Camera for something else than snapping at
> grand kids.
My experience with a homemade setup (light box and C2000
with a closeup lens) is that it probably isn't worth the
trouble. You can get better resolution out of a cheap slide
scanner or even a flatbed with a transparency adapter, and
copying slides really showcases the shortcomings of digicam
image sensors. (In particular, you lose a lot a sharpness
because the color and brightness info get reconstructed from
the values at adjacent pixels, and the dynamic range is a scant
8 stops with no adjustment)

I also found that either the sensor or the digicam lens
exhibited a fair amount of flare/halation, so that in
addition to being blown out, bright areas of the slide
also lightened the areas around them...

paul

--
Paul Wallich                                            pw@xxxxxxxxx

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