| Customization: | Available |
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| After-sales Service: | 1 Year |
| Warranty: | 1 Year |
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| model | KFS20x80 |
| magnification | 20x |
| body material | aluminium alloy |
| rubber material | rubber |
| color | black |
| objective aperture | Φ80mm |
| eyepiece aperture | Φ24.5 mm |
| exit pupil | Φ4mm ± 10% |
| eye relief | 17mm |
| (°)FOV | 3.3° |
| (at 1000M)field of view | 58m |
| (at 1000yds)field of view | 174ft |
| diopter regulation |
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| eye distance | 58~72mm |
| focusing system | cent |
| focusing lens | eyepiece focusing |
| diopter regulation | -4~+4 diopter |
| focus range | -4~+8 diopter |
| prism system | porro |
| lens material | BAK4 |
| optical system | Objective lens :2 pieces 1 group |
| Eyepiece lens :4 pieces 3 groups |
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