AmScope 3.5X-90X Boom Stand Zoom Magnification Stereo Microscope + 144 LED Ring Light + 10MP USB Digital Camera 3.5X-90X super widefield zoom magnification 8" large working distance and 2-1/2" field of view Powerful 144 LED ring light with dimmer 3D boom stand allows you to point the microscope head in any direction desired 10MP USB 2.0 still/video camera with advanced editing &amp; measuring software for Windows XP/Vista/7/8/10