Magnification: 1.65×
The diameter of Visual Field: =56mm
Red light wavelength=640nm
Left and right tubes around an erect axis: concourse 50°, radiation 40°
Left and right tubes around a horizontal axis: ±30°
Pictures of left and right can be moved up and down according to axis: ±10?
Pictures of left and right can be moved up and down around the optical axis: ±20°
Adjustable range of pupil distance: 45-75mm
Darkroom illumination: LED luminophor with symmetry design
Adjustable Haidingers Brush: 50-100round/ minute
Coruscation form: manual or automatical
Automatical coruscation frequency: ten-step, 30-300times/minute.