The GM400T-LEDis designed for professional jewelers and gemologists. It features a 7X-45X zoom stereo microscope head with a wide field-of-view. The trinocular head provides a switchable photo-port for mounting a camera. The support system features a rotating footprint for easy turning, and a reclining arem for sitting or standing. The sub-stage halogen illuminator provides switchable brightfield and darkfield with an iris aperture for transmitted lighting. A gooseneck-mounted LED lamp provides reflected illumination for surface inspection. All lights are variable-intensity for prcision control. The stage-mounted gem-clamp can be swiveled and twisted for precise positioning. The 20MP USB camera can be used with PC and Mac computers, and provides extremely high-resolution images. The included software provides a live view for on-screen viewing, and multiple capture resolutions. The Windows version includes enhanced editing and measuring tools. Features: A high quality professional 7X-45X trinocular jeweler's microscope Comfortable Ergonomic design High resolution sharp images with both bright and dark field illumination Large rotatable round stage with built-in darkfield condenser, 3D gem clamp and graduations Adjustable stand for easy and comfortable observation Possible to measure gem angles Advanced halogen system providing 100% CRI illumination for brightfield and darkfield illumination Flexible gooseneck-supported LED top-light for reflected illumination Built-in darkfield with iris-aperture 3D flexible gem clamp 45 degree inclined 360 degree rotatable trinocular head Trinocular port for adding photo or video capability Large zoom magnification range High resolution optics with great flatness and contrast Sharp stereo erect images over a wide field view Crystal clear original true color images Eye tube with adjustable diopter Accurate alignment ensuring a fatigue-free viewing Full optical glass elements Precise ground glass lenses All metal mechanical components Adjustable interpupillary distance Rubber eye-guards included Manufactured under restrict ISO 9001 quality control system Five (5) year manufacturer warranty for microscope Unbeatable lowest price guaranteed or the difference back! Satisfaction guaranteed or your money back! Specifications: Head: 45 degree inclined 360 degree swiveling trinocular Eyepiece: 30mm widefield WF10X/20 Objective: 0.7-4.5X Zoom Range: 6.7:1 Field of View: 1-1/2" (33mm) in diameter Working Distance: 4" (100mm) Interpupillary Distance: 2-3/16" - 2-15/16" (55mm-75mm) Stand: gemology stand, inclinable up to 38 degrees Iris Diaphragm: 2 - 41mm Focal Range: 4-3/8" (110mm) Stereo Angle: 12.4 degree Diopter Adjustment: +/-5dp Top Illumination: 1W LED Bottom Illumination: 6V/30W halogen Power Supply: 100-240VAC 50/60Hz Camera Specifications: Sensor: Sony IMX183 (color) Sensor Type: BSI CMOS Sensor Size: 1" (13.3mm x 8.9mm, 15.8mm diagonal) Pixel Size: 2.4µm x 2.4µm Sensor Pixels: 20MP (5440x3648) Sensitivity: 462mv Max Framerates: 15fps @ 5440x3648, 50fps @ 2736x1824, 60fps @ 1824x1216 Binning: 1x1, 2x2, 3x3 Exposure Time: 0.1ms - 15s Connectivity: USB 3.0 Compatibility: Windows (32/64 bit) XP/Vista/7/8/10, Mac OSX, Linux Packing List: One trinocular stereo zoom microscope head One gemology microscope frame One pair of super-widefield WH10X/20 eyepieces One 3D gem-clamp (tweezers) One dust cover One 1X C-mount photo-port adapter One 20MP camera One USB cable One software disk