... saving Long lfie; Protecting the environment; Security; Convenience;Comfotable Digital Biological Microscope45mm DIN Achromatic Objective: 4X,10X,40X(S),100X ... Eyepiece: WF10X;Articulated Free Binocular Head, Intepupillary Distance:55-75mm,30ºInclined, 360ºRotatableBuilt-in Digital Camera System, Resolution:1280(H ... : 14mm, Precision:0.01mmBuilt-in Adjustable Brightness LED lamp Digital Microscope