Focus mode: Objective adjustment and adjustment of the eyepiece.<br
★Large eye layer through the blue film,the vision,the comfort of the watch.<br
Coating: MFC broadband green film.<br
★Super-wide set of glasses to increase the amount of light,the clearer and shiny image.<br
★All-optical glass lenses,multilayer multilayer multilayer film in green,the image is not colorful is not a distortion,the ultra-light transmittance lens and the condenser function to improve the nocturnal light effect