Aino - a lot of scanners have negative and dias holders so that you are able to scan those types as well. I have a lot of dias as well from my childhood that I have never seen and is going to scan too, it is so fun to see.
Yes, you can of "develop" them on the computer. It takes a little longer than with photos, but I agree with Chris that they seem to be crisper than the photos the only thing is alll of those which have the scratches.
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Vigdis
My shutterfly pages with the photobooks I have made
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