8X variable focal length design is concentrated in HD and
HD Video： HD broadband with green film plating,the light
transmittance is up to 98% and the imaging is clear and
The ocular is adopted the traditional purple film technology to
make it to be updated further,can effectively prevent from the
dizziness and fuzzy.
The refractive adjustment knob, because there may be
differences between the left and right visual acuity, you need
adjust the left-eye definition when using, then slightly rotating
the right -eye diopter until the best effect.