Specification：

Optics System：Inclination optical viewing system

Objective Ratio：1×/2×, 1×/3×, 2×/4×

Eyepiece：WF10× (ø20mm)

Working Distance：(1×/2×) 110mm, (1×/3×) 102mm, (2×/4×) 90mm

Viewing Field Rang：Ø23mm～Ø 5.7mm

Interpupillary Adjustable Rang：55mm～75mm

Illumination：Free Voltage 100V-240V/12V 10W halogen bulb with adjustable brightness