My daughter has an Epson 2450 flat bed scanner that she uses to scan her drawings (I say this to establish my bona fides as an analogue photographer ). I tried it with some 5x7 contact prints, thinking to make some contributions to the APUG gallery.

I tried an actual size scan 5x7 at 90 dpi, having read that this is sufficient for web use. I even auto sharpened using the silverfast software that came with the scanner. results were pretty mushy. I kept increasing the dpi setting on the scan, producing only slightly better results. the results at 1200 dpi, were ok, but, by then I was producing a 42 meg file. I'm sure Sean would not want to be on the receiving end of one of those!

Anyone able to help? What am I doing wrong?