|
Ningbo Yong Jing Science and Education Equipments Co.,Ltd. |
| Product Name: | spotting appliances |
| Model No.: | ST20-60;ST20-45 |
| Place of Origin: | Zhejiang |
or
Description
| Aperture(mm): | 60/50 |
| Focal Length(mm): | 285/190 |
| Coating: | Coated |
| Power: | 20x-60x/15x-45x |
| Eyepiece Relief(mm): | 10/16 |
| Apparent Field of View(degree): | 35-42 |
| Real Field of View(degree): | 1.75-0.7/2.3-0.9 |
| Exit Pupli(mm): | 3-1/3.3-1.1 |
