product description : canon document, photo, film scanner type : flatbed scanning element : 6-line colour ccd light source : white led resolution : 4800 x 9600 dpi optical 19,200 interpolated scanning gradation : colour : 48-bit input/48 or 24-bit output grayscale : 48-bit input/16 or 8-bit output maximum size : a4/ltr, 216 x 297 mm preview speed : approx. 4 sec scanning speed : colour: 14.6 msec/line (4800dpi/2400dpi), grayscale, b&w : 14.6 msec/line (4800dpi), 12.1 msec/line (2400dpi) film : 6.8-67.5 msec/line film types : 35mm strip (negatives/positives): 12 frames 35mm slides : (negatives/positives): 4 frames 120 format film : max. 6 x 22 cm (filmstrip only) film effective scanning(35mm) : 24 x 36 mm, 4535 x 6803 pixels film effective scanning(120 format) : 56 x 220mm, 10583 x 41575 pixels interface : high speed usb 2.0 power supply : ac adaptor power consumption : 19w (max), 3.2w (standby) dimension(h x w x d) : 97 x 272 x 491 mm weight : approx. 4.3 kg