I have that same problem, or should I say had. But your gamma. I had to adjust it to 3.4 to get ok scans but the colors are still off, I need to do a calibration using it8 target. For the money I feel that this scanner should have come with a calibration software that could use it8 target.

: I've bought the FS4000 recently and noticed a disappointing lack of shadow detail with slides. It's like Soren Svensson said: whites are OK, but shadow detail just isn't there.
: Does VueScan offer a solution? Is it better to scan slides with media type "slide" then "image"?