HP Scanjet 4890 Photo Scanner - Resolution: Up to 4800 dpi (optical); Colour depth: 48-bit; Scan speed: about 7 seconds for multiple image scan, about 26 seconds for single image scan (4 x 6 inch colour photo to file), about 10 seconds for multiple image scan, about 36 seconds for single image scan (35 mm slides to file), about 12 seconds for multiple image scan, about 39 seconds for single image scan (35 mm negatives to file), about 29 seconds for single image scan (OCR 8.5 x 11 inch text to Microsoft? Word), about 32 seconds for single image scan (4 x 6 inch colour photo into share/e-mail), about 50 seconds for single image scan (8.5 x 11 inch PDF to e-mail)