The problem with most current scanners is that they depend on
reflected light. Slides, of course, expect to have
transmitted light. In other words, the slide is
between the light and the viewer. Todays scanners simply bounce light off the surface of an object to get an image. Dedicated slide scanners, I assume, used the same principle as a slide projector, putting the slide between the light source and the imaging receiver. But, slide film is becoming even difficult to find, much less use (do they still make cameras that use film, other than the disposable ones?), the need for these kinds of scanners is decreasing quickly. Obviously, you should have done all this transferring of slides to digital format many years ago! Why did you delay?!!!! Probably for the same reasons I did, unfortunately...
Now it is even more difficult... "Learning slowly, you are."
Indeed, I bought an attachment for an old SCSI scanner that was to be used to scan slides (basically, a frame to hold the slides with a light source in it). Unfortunately, the native resolution of the scanner prohibited it from making good copies...now that we have much better native resolution scanners, I don't see any 'attachments' to use with them.
Too small a market?
Seems it could be profitable for some one.
Of course, another big problem is the 'color' of the light source. Not to mention the problem of dealing with the large amounts of heat usually associated with that light...
OK, we've pretty well mentioned all the problems...who can provide a reasonable solution? Make a slide holder for our new digital cameras? With auxillary lens to focus at the short distances required? And to protect the electronics from the probably direct aiming at the sun for the correct color and intensity of light?
Can use say "Injury lawsuits?"
