... and with the optical microscope, with magnification, the same field of view, clear image, strong sense of stereo, depth of field, ... wide-angle, with diopter adjustment and stopperMagnification: 5X ~ 25X continuous zoom powerField diameter: 85.0mm ~ 8.5mmWorking distance: 200,250,300 ... camcorders, video image processing expert system operation. Facial features Series multifunction operating microscope