Trinocular: 7X to 45X Continuous Zoom Magnification Power 45-degree Inclined Trinocular Simul-focal Head with SUPER WIDEFIELD High-Eyepoint Eyepieces Trinocular port for adding photo or video capability 30mm Super Widefield WF10X Eyepieces with 20mm Field of View High Resolution with Great Flatness and Contrast Sharp Stereo Erect Images over a Wide Field View Crystal Clear Original True Color Images Large Working Distance Accurate Alignment Ensuring a Fatigue-Free Viewing Full Optical Glass Elements Precise Ground Glass Lens All Metal Mechanical Components Adjustable Interpupillary Distance Manufactured under ISO 9001 Quality Control Standard Specifications: Head: 45-degree inclined 360-degree swiveling trinocular simul-focal Eyepiece: 30mm super widefield high-eyepoint WF10X/20 Objective: 0.7-4.5X Zoom Range: 6.5:1 Trinocular Port: 23mm photo port Interpupillary Distance: 2-1/8" to 3"(54-76mm) Field of View: 1-1/4" (33mm) Working Distance: 7X-45X (100mm) Use 0.5x objective lens 3.5X-45X(165mm) Use 2.0x objective lens 7X-90X(40mm) Head Mounting Size: 3" (76mm) diameter Accessory Mounting Size: 1-7/8" (48mm female thread) diameter Binocular: 7X-45X zoom magnification power with crisp sharp images Super widefield high-eyepoint optics widefield of view 4" (100mm) working distance Sturdy all-metal pillar stand offers super widefield optics and 7X-45X zoom magnification power with a cool light illumination system. It is an ideal instrument for industrial inspection and/or biological lab applications. This microscope is perfect for gemologists, manufacturing engineers, dental lab technicians, and anyone in electronic and semiconductor industries. Specification: Head: 360 degree rotatable 45 degree inclined binocular Eyepieces: 30mm super widefield high-eyepoint WF10X/20MM Objective Zoom Range: 0.35X-9.0X, using the Barlow lenses Working Distance: 4" (100mm) Diopter Adjustment: +/- 5dp Interpupillary Distance: 2-3/16" - 2-15/16"(55-75mm) Round Plate: 3-3/4" (95mm) in diameter Stand: 10" x 7-7/8" x 10.75" (254 x 200 x 275mm) Accessories: Paired eye-caps Note: This link have different Optional Items, The packing same as optional picture