USB Overhead Document Camera Book Scanner,OKWOLOK Fast Scanning Books,Photos,Objects, with LED Lights, 5 Mega-pixel High Definition, for Classrooms,Libraries,Demonstration Excellent image processor:High-sensitivity CMOS image sensor allows the photosensitivity greatly enhanced, and high-speed and high-performance image processor and superior noise reduction technology can remove the noise in high sensitivity. CMOS image processor not only takes into account the professional grade high resolution but also takes into account the professional-grade response speed. High-speed focus system thereby improves the work efficiency. 5.0M Pixels High quality Camera:Ultra-low dispersion lens can effectively compensate for chromatic aberration of short focal length camera; equipped with high-precision aspherical lenses suppress residual aberrations to achieve high-definition picture quality; accurate focus (inner focusing) can be achieved through easy operation. High speed document capture-High speed document capture (Scanning)-Supports single image capture, auto image capture, continuous shooting, timer continuous shooting; it also can cut the extra edges of images, it can automatically capture a batch files in a short time. High definition display platform-It can be used in conjunction with PC and projector when making a demonstration. Documents, manuscripts and other objects can be projected on the large screen. Assisted by whiteboard function, the writings,annotations can be added during the demonstration. High Definition video record-The demonstration can be recorded in AV format as a courseware.