This is a a trinocular 3.5X-45X zoom stereo boom microscope with 144-LED ring light and a 0.3MP USB2.0 camera. The microscope comes with a trinocular head with 30mm SUPER widefield high-eyepoint eyepieces and single-arm heavy-duty boom stand, offering crystal clear sharp images, super widefield of view and large working distance.The high-eyepoint optical design ensures an easy and comfortable observation for all kinds of users including eyeglass wearers. The boom stand offers flexibility to cover large working area. The intensity-adjustable LED ring light provides bright, even and cool light illumination.This microscopy system is an ideal instrument for gemologists, engravers, collectors and anyone in semiconductor and/or electronic industry. It is a right microscope for biological laboratory applications that require low heat release. The digital camera captures still images and video, and allows you to view a live stream on your PC. With software available for Windows, Mac, and Linux, it's a multi-platform imaging solution. The included Windows software offers image-development and measurement tools, as well as advanced compositing features such as image-stitching and extended-depth-of-focus. Independent preview and capture resolutions allow you to view high-speed video while capturing high-definition images. For Mac and Linux, there is a lite version with limited processing features.Features:A 3.5X-45X Large Zoom Power Microscope on Boom with 144-LED Ring Light!45 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 Eyepieces: WF10X/20Large Working DistanceAccurate Alignment Ensuring Fatigue-Free Long Time ViewBoth Ocular-Tubes with Adjustable DiopterAdjustable Interpupillary DistanceSingle-Arm Boom Stand Covering Large Working AreaHeavy-Duty Cast Steel Stand Finished with Stain Resistant EnamelRugged Solid Cast Steel BaseAll Metal Mechanical ComponentsManufactured under ISO 9001 Quality Control StandardSpecifications:Head: 45 degree inclined 360 degree swiveling trinocularEyepieces: 30mm Super widefield high-eyepoint WF10X/20Barlow Lens: 0.5XObjective: 0.7-4.5XZoom Range: 13:1Diopter Adjustment: +/-5dpInterpupillary Distance: 2-3/16" - 2-15/16" (55-75mm)Field of View: 2-1/2" (65mm) in diameterWorking Distance: 8" (200mm)Illumination: 144-LED ring lightPower Supply: 110-240V, 50-60HZ, Automatic SwitchingBoom Stand: 16" single-arm (overall length: 24"), 17" high pillar, 9" x 9" x 1-3/4" solid cast steel baseCamera Specifications: Sensor: Aptina MT9V011 Sensor Type: CMOS Sensor Size: 3.58x2.69mm Pixel Size: 5.6 Resolution: 0.3MP Frame Rate: 30@640x480, 80@320x240 Sensitivity: 1.9V/lux-sec Compatibility: Windows (32/64 bit) XP/Vista/7/8/10, Mac OSX, Linux Software 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 portPacking List :One Trinocular Stereo Zoom HeadOne Pair of SUPER Widefield 10X EyepiecesOne 0.5X Barlow LensOne Single-Arm Boom StandOne Focus RackOne 144-LED Ring Light with Power Adapter and Built-in DimmerOne 48mm Thread Ring Light AdapterOne Pair of Eye-GuardsOne 0.3MP USB2.0 Digital Camera with Reduction LensTwo Mounting AdaptersUser's Manual for the MicroscopeShipping Weight: 65 lbsPackages: 2 (50 lbs & 15 lbs)