The CanoScan? 4200F Color Image Scanner quickly produces superb scans from a wide range of materials including photos, documents, magazines, slides and negatives. It delivers an exceptional color resolution of 3200 x 6400 dpi (max.) as well as 48-bit color depth, for over 281 trillion possible colors. For cleaner, more robust scans of older originals, automatic retouching and enhancement technology automatically removes much of the dirt and scratches that may appear on your originals. It even auto-corrects tone and optimizes highlights and shadows, for the best scans possible. This is one smart scanner.