AmScope 3.5X-90X Trinocular LED Boom Stand Stereo Microscope + 9.1MP Camera 3.5X-90X continuous zoom magnification power offers sharp clear stereo erect images Super widefield optics, sturdy boom stand, and 54-LED compact ring light with dimmer 2-1/2" (65mm) super widefield view and 8" (200mm) large working distance 9MP USB 2.0 digital camera for photos and videos on Windows, Mac, and Linux Advanced software for Windows XP/Vista/7/8/10, limited software for Mac/Linux