Specification Brand : AmScope BulletPoint1 : Professional stereo microscope with boom stand has long working distance to enable users to perform work or manipulate large items, including gem and jewelry applications BulletPoint2 : Trinocular viewing head with pair of 10x widefield high-eyepoint eyepieces, adjustable interpupillary distance, fixed 45-degree vertical inclination to reduce eye and neck strain, and 360-degree rotation capability to enable sharing BulletPoint3 : 0.7x-4.5x zoom objective provides continuous zoom magnification and longer focal length for inspecting large-scale specimens, a 0.5x Barlow lens extends the working distance, and a 2.0x Barlow lens extends the magnification range BulletPoint4 : Upper and lower light sources provide close-to-daylight illumination for clear color reproduction, and light transmitted through the built-in darkfield condenser is designed for the examination of the inside quality of diamonds BulletPoint5 : Inclined pillar stand with rotatable round mechanical stage measures gem angles, flexible gem clamp secures specimens, and white stage plate provides contrast with dark-colored specimens Color : clear CustomerPackageType : Standard Packaging ExternallyAssignedProductIdentifier1 : 013964561159 ExternallyAssignedProductIdentifier2 : 0013964561159 ItemName : AmScope GM400TZ Trinocular Gemology Stereo Zoom Microscope, WH10x Eyepieces, 3.5X-90X Magnification, 0.7X-4.5X Zoom Objective, Halogen and Fluorescent Lighting, Inclined Pillar Stand, 110V-120V, Includes 0.5X and 2.0X Barlow Lenses ItemPackageDimensions_Height : 34.544 centimeters ItemPackageDimensions_Length : 81.788 centimeters ItemPackageDimensions_Width : 52.578 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : science-lab-stereo-microscopes MagnificationMaximum : 40 multiplier_x Manufacturer : United Scope LLC. Material : Metal ModelNumber : GM400TZ NumberOfItems : 1 PartNumber : GM400TZ PowerSourceType : Corded Electric ProductSiteLaunchDate : 2011-03-03T20:25:08-00:00 RealAngleOfView : 45 degrees Voltage : 6 volts