... do visual presentationDocument camera compare with Scanner: 1. Scanner need at least 10s, document camera only need around 0.5s, ... 25cm space, document camera only need 15cm x 18cm3. Scanner cannot scan object, but document camera can4. Document camera are foldable ... Info.: Scan only in one second!Dual camera portable handy scanner 5 megapixel for A4 aera shooting with bundled software (D530 ...