AmScope 3.5X-90X Simul-Focal Trinocular Articulating Microscope + 5M USB Camera 3.5X-90X simul-focal zoom magnification power with crisp sharp images 2-1/2" (65mm) SUPER widefield view and 8" (200mm) large working distance Flexible articulating arm with clamp Powerful 64-LED ring light with intensity control 5MP digital camera with advanced editing &amp; measuring software for Windows XP/Vista/7/8/10