"Scan resolution, hardware
1200 x 2400 dpi
Bit depth
48-bit" from:

I see it does not have the slide adapter or backlighter. Let's say you can make your own. I think you should read:
http://www.abstractconcreteworks.com/essays/scanning/Backlighter.html and see if that helps.

--->> Bottom line. 35mm is about 1.5 inches so at 1200 DPI you get about 1800 by 1800 pixels on a scan of the slide area. That looks like 3.2 megapixels so that's enough resolution for most of us.

Hope this helps,