This 3.5X-90X trinocular stereo zoom microscope is on boom stand. It comes with a trinocular head with super widefield optics, a heavy-duty single-arm boom stand, a 54-LED ring light with dimmer, and a 10MP color digital camera. It offers crystal clear erect stereo images, 2-1/2" (65mm) super widefield of view, 26:1 large magnification zoom range and 8" (200mm) large working distance. The high-eyepoint optical design ensures an easy and comfortable observation for all users including eyeglass wearers. The digital camera captures still images and video, and allows you to view a live stream on your PC. The boom stand gives your microscope the flexibility to cover large working area. The intensity-adjustable LED ring light provides bright, even and cool light illumination. Features: A 3.5X-90X Continuous Zoom Magnification Microscopy System on Boom Stand54-LED Ring Light and 10MP Color Digital Camera Included54-LED Bright, Even and Cool Lighting Illumination45 Degree Inclined Trinocular Head with SUPER Widefield High-Eyepoint EyepiecesErect Stereo Sharp Images over a SUPER Widefield of ViewFull Optical Glass ElementsPrecise Ground Glass LensesHigh Resolution with Great Flatness and ContrastCrystal Clear Original True Color Images30mm SUPER Widefield WF10X/20 EyepiecesLarge Working DistanceAccurate Alignment Ensuring Fatigue-Free ObservationBoth Ocular-Tubes with Adjustable DiopterAdjustable Interpupillary DistanceVersatile Boom Stand Covering Large Working AreaHeavy-Duty Cast Steel Stand Finished with Stain Resistant EnamelRugged Solid Cast Steel BaseAll Metal Mechanical ComponentsRubber Eye-guards IncludedMounting Adapter for LED Ring Light IncludedCamera Adapters for Fitting All Other Microscopes IncludedManufactured Under ISO 9001 Quality Control StandardExcellent Five (5) Year Factory WarrantySpecifications: Head: 45 degree inclined 360 degree swiveling trinocularEyepiece: 30mm Super widefield high-eyepoint WF10X/20Objective: 0.7-4.5XBarlow Lens: 0.5X and 2.0XZoom Range: 26:1Diopter Adjustment: +/-5dpInterpupillary Distance: 2-3/16" - 2-15/16" (55-75mm)Working Distance: 8" (200mm)Widefield of View (Maximum): 2-1/2" (65mm) in diameter, super widefieldIllumination: 54-LEDPower input: 110-240V, 50-60Hz, Automatic SwitchingBoom Stand: 16" arm (overall length: 24"), 17" high pillar, 9" x 9" x 1-3/4" solid cast steel baseAccessories: eye-guardsCamera Specifications: Sensor: Aptina MT9J003Sensor Type: CMOSSensor Size: 6.44x4.616mmPixel Size: 1.67Resolution: 10.0MPFrame Rate: 1.9@3584x2748, 8@1792x1374, 27@896x684Sensitivity: 0.31 V/lux-secCompatibility: Windows (32/64 bit) XP/Vista/7/8/10, Mac OSX, LinuxSoftware Specifications: OS Requirements: Windows (32/64 bit) XP/Vista/7/8/10, Mac OS 10.8+, Linux kernel 3.13+Hardware Requirements: Intel Core2 2.8GHz or comparable processor, 2GB RAM, USB2.0 port.