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| Product Name: |
High Optical Performance 20-60X85 Bird Watching Binocular
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| Supply Ability: |
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| Related proudcts |
night vision, bird watching, |
| Specifications |
20-60X85 |
| Price Term: |
L/C,T/T,Western Union,Paypal |
| Port of loading: |
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| Minimum Order |
1 pieces |
| Unit Price: |
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Product Code 20_60x85
Magnification 20~60X
Effcetive diameter of objective lens 85mm
Objective lens focal length 530.04mm
Zoom eyepiece focal length 26.1mm~8.83mm
Objective lens structure(#Elements/#Groups) 3&©|8260;3
Zoom eyepiece lens structure(#Elements/#Groups) 7&©|8260;4
Focusing system intemai porro prism focusing with dual focusing device
Field of View 2¡ã~1¡ã
Apparent Real field of View 40¡ã~60¡ã
Field of View at 1000m/1000yds 35m~17.5m/105ft~52.5ft
Eye relief 19.6mm~17.8mm
Exit pupil 4.2mm~1.4mm
Twilight factor 41.2~71.4
Minimum focusing distance 7m
Zoom eyepiece focal length 88mm
Zoom eyepiece focal weight 220g
main body length 385mm
main body weight 1590g |
| Company: |
Kunming Kelongda Optical Instrument Co., Ltd.
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| Contact: |
Ms. jennifer Huang |
| Address: |
266 Gulian Village, Biji Town, Xishan District, Kunming, Yunnan, China |
| Postcode: |
650114 |
| Tel: |
86-871-68184665 |
| Fax: |
86-871-68188821 |
| E-mail: |
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