ViTiny UM12 USB 5MP Auto-Focus Long Working Distance Digital Industrial Microscope Lens & CMOS sensor: 5M pixels. Magnification: 10x to 280X on 21.5 monitor. Preview Resolution: 1600x1200, 1280x 960, 1280x800, 1024x768, 800x600, 640x480. Video Resolution: 1600x1200 pixels, AVI file. Frame rate: 30FPS (resolution: 640x480), 15FPS (resolution: 1600x1200, MJPG). Working distance: 9.6mm to 140mm. Light Source: 8 white LED lights. USB 2.0 High-Speed Transmission, Web Cam function. Autofocus: Single Autofocus or Continuous Autofocus. Far Distance Control Mode: Control all functions by Software without a single button touch on microscope. Metal steel stand: 360 degree rotation and height adjustment. Software with Measurement Functions: Length, Circumferences, Radius, Diameter, Area, Angle, Image Comparison, etc.