Base:
Twisting base
With cold light
Dark field
Gem clamp etc.

Head:
Viewing head: 45° inclined, 360° rotatable binocular Head or trinocular head with photo port.
Eyepiece: Wf10x20mm, wide field, high-eyepoint eyepiece
Objective: Zoom objective magnification 0.70x-4.5x.
Magnification: 7x-90x or 3.5x-180x with auxiliary
Inter-pupillay distance: 55-75mm
Diopter range: ±5mm