Trinocular Head : Articulated Free Trinocular Head, 45o Inclined,360o Rotatable , with adiopter adaptor on the both eyepiece tube Interpupillary Distance : 48-75mm Eyepiece : WF10X(Φ20mm) Objective : Objectives range of zoom magnification 0.7X~4.5X Total Magnification : 7X - 45X Visual Field : Φ28.5~Φ4.5 Focusing Range : 50mm Arm Height : 100mm Circular Plate : Plastic board, glass Illumination : "Reflected light source:12V15W halogen lamp with reflector cup and adjustable brightness. Transmitted light source:12V15W halogen lamp and adjustable brightness" CMOS Camera : "3.0Mega pixels resolution;scientific-grade,non-destructive image output and storage;Sensor Size:1/2 inch;Pixels:3.2 x 3.2 micron; Resolution:2048H x 1536V;Supply electricity;USB2.0" Package Size : 52.3X26.9X38.3cm Gross weight : 7kg