- optical windows
- 2016-10-28 23:23
- Windows are used to isolate different physical environments while allowing light to pass. The selection of a window
- waterproof binoculars
- 2016-10-13 14:59
- Model:8X42Magnification:8XObjective diameter(mm):32Prism(BAK4/K7):BAK7Prism type(Roof/Porro):Roof Eyepiece diameter(mm):
- military binoculars
- 2016-10-13 14:59
- Model:M750CMagnification:7XObjective diameter(mm):50Prism(BAK4/K7):BAK4Prism type(Roof/Porro):PorroEyepiece diameter(mm)