By the way I have tested my scanners with a SilverFast USAF 1951 target slide and my conclusion is that Epson V700 is optimised for Filesize vs. Resolution with an scanning resolution of 3200ppi, the Plustek Opticfilm 7400 at 3600ppi and the Plustek OpticFilm 120 at 4000ppi or 5300ppi depending on ultimate quality requirements. That's about how to get the most out of these devices. The V700 had about measured resolution of 2300-2600ppi and the OF7400 about 3400-3500ppi and OF120 about 4000-4300ppi.
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