The Canon scanner product range includes document scanners and flatbed scanners for the digitization of reflective originals. Additionally, some come equipped with a transparency unit, which enables the scanning of slides, negatives and film strips. The quality of some models is so impressive that they are even able to compete with special film and slide scanners. When using SilverFast Multi-Exposure® with CanoScan series models, it is possible to achieve dynamic range values between 3.6 and 3.9. This means that the hardware is capable of detecting over 9,500 different grayscale.