1600X Digital Pocket Microscope (Camera Sysyem) 1.45mm Din Achromatic Objective:4X,10X,40X(S), ... 100X 2.With Field Plane-scope 1600X Digital Pocket Microscope (Camera Sysyem)1. 45mm DIN Achromatic Objective:4X,10X,40X(S ... Focusing Adjustable Mechanism:25mm Precision:0.002mm5.Built-in Digital Camera Sysyem,Resoultion:1280(H)*1024(V),1/2'',chip; USB2 ...