... energy saving Long lfie; Protecting the environment; Security; Convenience;Comfotable Digital Biological Microscope45mm DIN Achromatic Objective: 4X,10X,40X(S),100X ... Head, Intepupillary Distance:55-75mm,30ºInclined, 360ºRotatableBuilt-in Digital Camera System, Resolution:1280(H)*1024(V),1/2Chip, USB2 ... Mechansim: 14mm, Precision:0.01mmBuilt-in Adjustable Brightness LED lamp Digital Microscope