1. Magnification: 40-1000 (40×-500× as standard) Abbey spotting scope with aperture diaphragm 

2.Focusing range:40㎜ 

3. Magnification: 0.5 times 

4. Camera pixels: 20 million 

5. Measurement accuracy: ±0.5um

6.Measuring speed:500/10min 

7.Measurement repeatability:±0.1um 

8. Average fiber diameter, coefficient of variation, standard deviation calculation standard: according to the national standard GB10685-89 international standard ISO137-85 development 

9. Illumination device: reflective LEDs