>Its not only old slides as mention below, all negative or positive film who >are litle bit curved show the same problem with overall sharpness regarding >LS2000 and LS 4000. >The problem is lack of depth of field in the lens construction . >Mikael Risedal
But my focus free Minolta Dual (>2400 dp, SCSI version) is half as sharp as my Nikon IV (2900 dpi). So typically, the overall sharpness of the Nikon is better. I choose a focus point half way between center and corner of slides and get very sharp scans. Mike Duncan
