This trinocular stereo microscope comes with a 1.3MP USB2.0 digital camera and a 144-LED ring light. It has a trinocular 3.5X-45X stereo zoom microscope body and a contemporary table stand, offering 2-1/2" (65mm) super large field of view, 8" (200mm) long working distance and 13:1 large zoom magnification range. The variable 144-LED ring light for stereo microscopes with mounting size 2.4" (61mm) in diameter. The ring light has 2.5" (62.5mm) inside and 3.64" (92.5mm) overall outside diameters. It works with power supplies from a 100-240V and comes with a 1-7/8" (48 mm in diameter) ring adapter. With variable intensity control, it provides cool, even, intense and focused shadow-free illumination. It is an ideal durable cool light source for all stereo microscopes The digital camera captures still microscopy images, streams live videos on your computers, and is compatible with Windows XP/Vista/7/8, Mac OS X, and Linux. The 0.37X reduction lens included gives your computer screens the same field of view as your microscope's eyepiece. The user-friendly software for Windows offers advanced features including Stitching, EDF (Extended Depth of Focus), video recording, and measurement functions. Live video and still image capture can be set in different resolutions simultaneously. You can edit and process images in a manner similar to PhotoShop. This microscopy system is an ideal instrument for gemologists, manufacturing engineers, and anyone in semiconductor and electronics industries. It is also the right microscope for biological laboratory applications that require low heat release.Features include... A perfect LED stereo inspection microscope with 1.3MP color digital camera Variable Intensity Control 144-LED illumination 3.5X-45X super wide zoom magnification power 8" (200mm) extreme large working distance Super high resolution with great flatness and contrast, giving sharp and clear images Trinocular head with 45° inclined 360° swiveling eye tubes 30mm SUPER widefield high-eyepoint eyepieces with 20mm field of view High resolution optical system with great flatness and contrast Sharp stereo erect images with wide field of view Crystal clear original true color microscope images Dual eye tubes with adjustable diopter Contemporary table stand Accurate alignment ensuring a fatigue-free long hour viewing Full optical glass elements Precise ground glass lenses Full metal chrome-plated mechanical components Adjustable interpupillary distance Rubber eyeguards included Manufactured Under ISO 9001 Quality Control Standard Excellent Five (5) Year Factory Warranty Specifications: Head: 360° rotatable 45° inclined trinocular Eyepiece: 30mm super widefield high-eyepoint WH10X/20MM Barlow Lens: 0.5X Objective Zoom Range: 0.35X-4.5X Zoom Ratio: 13:1 Working Distance: 8" (200mm) Field of View: 2-1/2" (65mm) super widefield Diopter Adjustment: +/- 5dp Interpupillary Distance: 2-3/16" - 2-15/16"(55-75mm) Illumination: 144-LED Variable Ring Light Power Input: 110-240V, 50-60HZ, Automatical Switching Stand: 12.5"x10"x0.75" (320x280x20mm) solid cast steel base Accessories: a pair of eye-guards Camera Specs... Sensor: Aptina MT9M111 CMOS (color) Sensor Size: 1/2" (6.66mm(H) x 5.32mm(V), diagonal 8.52mm) Resolution: 1280x1024 (approx. 1,310,000 pixels) Reduction Lens: 0.37X Pixel Size: 5.2µm x 5.2µm G Sensitivity: 2.1v / lux-sec (550nm) Frame Rate: 50fps @320x256, 26fps @640x512, 15fps @1280x1024 Exposure: 0.14ms~2000ms, ROI Auto & Manual Operating System: Windows XP/Vista/7/8 (32 & 64 bit), Mac OS X, Linux PC Requirements: CPU equals to Intel Core2 2.8GHz or higher, USB2.0 port Advanced software for Windows... offers Stitching, EDF, video recording and measurement functions conducts measurements for lengths, angles, arcs, areas and etc. gives your computer screens the same field of view as your microscope's eyepiece saves still images in BMP, TIFF, JPG, PICT, PTL or other formats edit and process microscopy images in a manner similar to PhotoShop live video and still image capture can be set in different resolutions simultaneously