Multi Pro at 3200 DPI hardware resolution?

[nuau]

I'm trying the demo version:
SilverFast: 6.5.0r6 Minolta
Scanner: Minolta AF-5000 DiMAGE Scan Multi Pro
OS: Mac OS X 10.4.9
Hardware: MacBook Pro 17 inch Intel Core Duo 2.16 GHz

The Multi Pro scans medium format at a maximum optical resolution
of 3200 DPI.

How do I get SilverFast to use 3200 DPI?

In the scan parameters General dialog I selected size 6x6. In
the Frame dialog I could not find any position of the scan
resolution slider that, with the Control key down, showed a
hardware scan resolution of 3200 DPI. I could only get 2400 DPI
and 4800 DPI. I also couldn't find a value to type directly into
the scan resolution field to give a hardware scan resolution of
3200 DPI.

[LSI_Muenier]

Dear nuau,

please scan at 4800 dpi.
This will use thte 3200 dpi hardware resolution and interpolate it up to 4800 dpi.

Best regards
Martin