>The most important thing when scanning negatives is to crop the
>image tightly enough so you don't have a lot of the white border
>showing inside the crop box. This will cause the overall image
>intensity to be too low.
>90% of the e-mails I get from people about problems scanning
>negatives are due to this problem.
I've had good success using vuescan's Buffer and Border settings (Crop tab) to
capture to or beyond the edge yet exclude edges from the color calculation.