Wired USB Q-scope LITE (1.2MP - 180x) no polarizer. Magnification: 10-40x and 180x Zoom: Yes, distance controlled Working distance: Standard Lens type: High grade optical glass with multi-layer anti-reflection coating Focus range: Manual focus from 10 to 500mm Polarizer: No Light/LED type: 8 White high power LEDs Sensor type: CMOS Resolution: 1280x960, 640x480 Max. frame rate: 25 fps Interface: USB 2.0 Operation system: Windows XP, Vista 7, 8 & 10, MacOS 10.6 and up Included software: Q-focus analysis software with measurement and annotation functions Supported: JPG, BMP, AVI Contents: Microscope, Software CD, User Manual, Calibration Target