My own experiences with flatbed scanners for digitalizing my slides was disappointing. I hoped the modern ones could be a good replacemnet for my aged HP Photosmart, but no. I ended up buying another film scanner, 2nd hand, from a colleague, a Minolta Dual Scan IV. I liked the HP better, I managed to get good scans easier with it, but the Minolta has a higher resolution and much better dynamic range.
Regards,
Adelaide