... and operation, but also for teaching, photography and CCD color camera.Optical microscope, the latest design into the main hinge ... ,350,400 mm40mm focal range of fine focusing speed 1 ~ 2 mm / sMicroscope before and after, left ... of 240 ° arm rotation...135 camera interface, a digital camera interface, 1 / 3 inch CCD camera interface, and dedicated digital cameras, camcorders, video image processing ...