I use a CanoScan 4200f to scan slideds into my computer. But the quilty of the images seem poor to me. When I opened up the pic's image size setting it reads only 72dpi I had it set to 400dpi sand it won't change. The film I used was Kodak Max versatility 400 and AGFA Vista 400. It also seem very "Grainy" am I doing somthing wrong or is it crappy film. The photos are for a Scottish clan gathering shoot.