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| Place of Origin | China |
| Brand Name | YBoptics |
| Certification | CE, FCC, ROHS |
| Model Number | YBRED15 |
Parameters for YBoptics Binoculars
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Magnification
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8.5×
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10×
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10.5×
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12×
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Body material
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Magnesium alloy
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Armor material
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NBR+PVC
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Color
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Objective lens
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42
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50
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Ocular lens
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24
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Exit pupil
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5.1mm
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4.1mm ± 10%
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4.7mm
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4.1mm
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Exit pupil distance (mm)
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17mm
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18mm
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17mm
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18mm
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Field of view (°)
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7.8°
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7°
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6.3°
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5.8°
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Field of view (at 1000M)
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136m
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122m
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110m
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102m
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Field of view (at 1000yds)
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408t
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366ft
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330ft
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306ft
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Near focus
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3.5M
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4M
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Diopter system
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Right diopter ring
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nterpupillary distance
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56～74mm
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59～74mm
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Focus System
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Center Focus
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Focusing lens
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Eye.
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Diopter compensation
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-4 To +4 Diopter
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Focusing Adjustment
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-4 To +8 Diopter
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Prism System
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roof prism
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Prism Glass Material
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BaK4
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Optical Configuration
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Objective lens
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3E2G
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Ocular lens
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4E3G
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Lens Type
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Spherical Lens
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Optical Material
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All optical glass
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Lens coating
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Coating Condition
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Fully Multi Coating
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Super Fully Multi Coating
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Fully Multi Coating
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Super Fully Multi Coating
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Coating Spec.
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420-680nm,R＜0.5%(AVG)
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400-700nm,R＜0.3%(AVG)
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420-680nm,R＜0.5%(AVG)
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400-700nm,R＜0.3%(AVG)
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prism coating
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Coating Condition
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Multi Coating +Phase Coating+Dieletric coating
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Coating Spec.
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420-680nm,R＜0.5%(AVG)
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Brief Introductions of ED Binoculars
* Extra-Low Dispersion (ED) Glass
* Phase Corrected
* High Resolution Phase Corrected BAK-4 Roof Prisms
* Focus From 1m
* Twist-Up Eye Cups With Position Stops
* Stay-On Lens Covers
Glass prisms are Phase Corrected, BAK-4 Roof Prisms for intense colour and contrast.
Binoculars: 1
Soft bag: 1
Portable carrying box: 1
Cleaning cloth: 1
Hand strap: 1
Manual: 1
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