RetiCam 3100 is international first-class automatic fundus imaging system. Through the dual camera imaging, image control and feature identification, it realizes XYZ three-dimensional automatic positioning. Through the CCD imaging feedback, it meter exposure light and then determines exposure intensity properly and automatically. According to image resolution, it controls focus stepper to adjust image definition and obtain clear accurate fundus picture. RetiCam 3100 has excellent optical imaging capabilities, convenient operation, and low dependence on operator, getting image easier.