Also the 6400 DPI number is not a software interpolated number. I say this because VueScan allows me to do raw scans at 6400. It doesn't prove much because the scanner hardware itself could be interpolating things are you're suggesting. Also I'm not saying you can get that much out of it but I'm quite certain it's a proper optical resolution. Would like to know if you're saying this based on some experimental evidence because I'm very interested in knowing.