Specifications:

1. F02 Leica trinocular eyepiece.
2. Optical system.
3. Angle of view: 38° .

4. 10.0X-64.0X zoom, zoom ratio 6.3:1
5. Excellent optical design, long-term use eyes will not tired
6. 110mm working distance,viewing tube viewing angle 38°
7. Two multiple limit device which is adjustable setting
8. Completely cross-optical system with high optical resolution and practicality