Feature: 1. 7X?45X ultra?wide?angle zoom magnification capability, easy to observe the internal structure of the object. 2. Trinocular interface, can add photo or video function, suitable for stereo microscope. 3. 30mm ultra?wide?angle WF10X eyepiece, the field of view is 20mm. 4. High resolution, high flatness and contrast, clear and distinct images. 5. 45?degree tilt and 360?degree rotating confocal trinocular can be used with a work frame. Specification: Item Type: Microscope Lens Material: Glass Model: White 7X-45X Lens: 45-degree tilt and 360-degree rotating trinocular to simulate focal length Eyepiece: 30mm super wide-angle high eyepiece WF10X/20X Objective Lens: 0.7-4.5X Zoom Range: 0.7-4.5X, 6.5:1 Trinocular Mouth: 23mm / 0.9in Photography Mouth Pupillary Distance: 2-1/8in - 3in (54-76mm) Field of View: 1-1/4in (33mm) Working Distance: 7X-45X(100mm) Head Installation Diameter: 3in (76mm). Package List: 1 x 0.5X Objective Lens2 x Wide-Angle Eyepiece1 x Microscope Lens2 x Dust Cover1 x Eye-Guard Note: Just accessories for the microscope lens, it needs to be used with the same size work frame.