Scanners for flatbed digitization of stitched documents and books up to A2 format. These scanners have an optical resolution of up to 1200 dpi, a wide dynamic range (D) of up to 3.9, a color depth of up to 48 bit and a scanning speed of up to 5 images per minute. These scanners have TWAIN (and some also ISYS) drivers that provide satisfactory scanning quality. The cost of such scanners starts from $2000.