This 3.5X-90X zoom stereo inspection boom microscope comes with a trinocular head with 30mm SUPER widefield high-eyepoint 10X eyepieces a 3D double-arm heavy-duty boom stand and a heavy-duty 80-LED ring light with metal control dimmer. The trinocular port enables to add photographic or video capability. The high-eyepoint optic design ensures an easy and comfortable observation especially for eyeglass wearers. The 3D double-arm boom stand allows you to turn the microscope head around three different axis (x y and z) and point the head in ANY directions you wish. The intensity-adjustable LED ring light provides bright even and cool light illumination. Providing crystal clear sharp images the microscope offers high resolution super widefield of view large magnifying zoom range and long working distance. It is an ideal instrument for manufacturers gemologists engravers collectors and anyone in semiconductor and/or electronic industry. It is a right microscope for biological laboratory applications that require cool illumination. Made by the same OEM supplier that provides optical instruments for Leica Zeiss Nikon and Olympus and retails for more than $2 000. Features: A 3.5X-90X Zoom Power Stereo Microscope on Boom with a Heavy-duty 80-LED Light! Bright Even and Cool Lighting Illumination Versatile Boom Stand Covering Large Working Area Double-Arm Design for 3-Degree Freedom Allowing You to Point Microscope Head in Any Direction You Wish High Resolution with Great Flatness and Contrast Erect Stereo Sharp Images over a SUPER Widefield of View 8 (200mm) Large Working Distance Accurate Alignment Ensuring Fatigue-Free Long Time View Crystal Clear Original True Color Images 45 Degree Inclined Trinocular Head with SUPER Widefield High-Eyepoint Eyepieces 30mm SUPER Widefield Eyepieces WF10X/20 Both Ocular-Tubes with Adjustable Diopter Adjustable Interpupillary Distance Full Optical Glass Elements Precise Ground Glass Lenses Heavy-Duty Cast Steel Stand Finished with Stain Resistant Enamel Rugged Solid Cast Steel Base All Metal Mechanical Components Rubber Eye-guards Included Mounting Ring Adapter Included Manufactured under ISO 9001 Quality Control Standard Excellent Five (5) Year Manufacturer Warranty Specifications: Head: 45 degree inclined 360 degree swiveling trinocular Eyepiece: 30mm Super widefield high-eyepoint WF10X/20 Barlow Lenses: 0.5X and 2.0X Objective: 0.35X-4.5X Zoom Range: 26:1 Diopter Adjustment: +/-5dp Interpupillary Distance: 2-3/16 - 2-15/16 (55-75mm) Working Distance: 8 (200mm) Illumination: 80-LED Power input: 110-240V 50-60HZ Automatic Switching Boom Stand: 20 double-arm (overall length: 30 ) 17 high pillar 10-1/4 x8-1/4 x2-0 solid cast steel base Accessories: eye-guards Shipping Weight: 75 lbs Packages: 2 (60+15) Packing List: One Trinocular Stereo Zoom Head One Pair of SUPER Widefield 10X Eyepieces One 0.5X Barlow Lens One 2.0X Barlow Lens One Double-Arm Boom Stand One Focus Rack One Heavy-duty 80-LED Ring Light One Ring Adapter for Ring Light One Pair of Eye-Guards User s Manual