Plustek Opticfilm 8200i Problems

Scanning issues remain. Will update soon.

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I’m having strange issue with my Plustek Opticfilm 8200i (with Silverfast 8.0.1r18).

If I scan the image in 2400dpi I get the exact image which looks like the image in Prescan, so all is well, the quality looks great. But should I up the resolution to 3600, the image becomes dark and usually results unusable image. Oddly sometimes 7200dpi is fine.

Whatever I do I can’t get the resulting image that’s written to disk match the image I’m seeing in Pre-scan in 3600dpi.

I wonder if I’m missing some key element here; I’m using NegaFix and 48-24bit setting and nothing fancy. I usually don’t even use Auto CCR. If you have a similar issue, would you let me know?