Eepiece magnification: 12.5X Alf wide-angle eyepiece
Focal length of objective lens: 200mm
Working distance: 192.74mm
Primary mirror magnification: 5X--25X, electric/manual continuous poleless doubling
Field of view diameter: 11mm-82.5mm
Visual adjustment range: ±6D
Pupil distance adjustment range: 55mm-75mm
Illuminating source: four groups of light sources, using 15V/150W, cold light coaxial lighting
German OSRAM halogen lamp, four level dimming
Coaxial illumination: ≥50000LX
Horizontal arm extension radius: ≥1230mm
Vertical adjustment range: ≥550mm
Fine tuning speed and stroke:≤1.5mm/s,≥40mm
X/Y coordinate moving speed and range: ≤1.5mm/s, ≥40mm
Power supply voltage and frequency: 220V+10% 50Hz