- Dec 1, 2013
- New Hampshire
- Real Name
OK, you're right, of course. The scan element is underneath, and as @newmikeman says, the light moves in tandem with it from above (I'm pretty sure).So there is a flatbed photo scanner that has a second moving CCD element on the lid?
But anyway, the point is that when you are doing a transparency, the scanner knows it and from my understanding (and as evidence all those holders that you get with it), it expects the item to be raised off the bed, similar to a slide. It may have enough DOF to still be in focus, of course, although, as I have said, I have read that it doesn't. But @John King has had good luck, so that's very telling, of course.