Technical parameters:
1. Optical system: Apochromatic optical system
2. Zoom range: gears zoom, 3. 2x/5x/8x/12. 8x/20X
3. eyepiece: 12.5x wide-angle eyepiece, diopter+6~-6D high eye point, suitable for operators with glasses
4. binocular tube: 0-180° angle adjustable, f170mm
5. objective lens: fixed focus lens: f= 250mm Zoom objective lens: f=200-300mm(optional)
6. lighting system: LED bulb, adjustable brightness center illumination is 30000-50000LX
7. handle: double handle angle adjustable
