The scanning of slides and negatives / positven films has more than 10 years ago to work better for me - with a Mustek flatbed scanner with a transparency unit and looped through printer interface ...
Oh how I miss these scanners now ...
Therefore, the Plustek 8200i comes back to Amazon.
Ps:
After much trying: the scanner is recognized as A2F FilmScan - sadly thinks the computer is a flatbed scanner. With the Windows Paint own or with IrfanView or Viewscan the scanner could be moved for scanning. Max 1200 DPI, poor quality.
Conclusion: A product without drivers for 64 bit Windows - useless.