Plustek or Pacific Image?

[calebarchie]

I've been using Vuescan lately, and I'm trying to figure out which settings will give me the best result for b+w negs.

I am currently saving them as RAW files (dng), and I've tried both the 48-bit RGB and the 64-bit RGBI settings. Is there in fact a difference? Or should I be trying another, better option?

Since this has been necro'd I may as well answer this question for you and for others.

There is no difference, 64-bit RGBi is just a 48-bit colour scan (16-bit R,G,B) with an extra 16-bit channel containing IR scan data for manual ICE, hence 64-bit, I for infrared.