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outdoor binocular 8X40 ,with aspherical lens

  • outdoor binocular 8X40 ,with aspherical lens
  • outdoor binocular 8X40 ,with aspherical lens
  • outdoor binocular 8X40 ,with aspherical lens
Model No.︰8X40
Brand Name︰outlook
Country of Origin︰China
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Product Description
aspherical telescope 8X40 Technical parameter
: Test items Technical parameter
Lens magnification 8x
Exit pupil diameter φ40
Exit pupil diameter φ5
Exit pupil distance 14.2
field of view 8.6°
Minimum Focus Distance 8m
Relative brightness 25
Dusk index 17.9
Resolution ≤5.5″
Type of Prism Paul
Number of lens 4 sets of 6 pieces 
Focus system: central focusing central adjusting 
Focusing Lens: internal adjusting eyepiece
central diopter adjusting range -4~+8SD
Eye-distance range  56~72mm 
overall dimensions  
weight 935g
Overall dimensions 182x60x145
Composition  
Outer sheath yes
tripod bolt yes
lens cover yes
Nitrogen filling yes
aspherical eyepiece , larger field of view. Ideal for outdoor uses and birds observation.
Specifications︰aspherical telescope 8X40
Advantages︰aspherical eyepiece , larger field of view. Ideal for outdoor uses and birds observation. Classic design, aspherical eyepiece , larger field of view. Ideal for outdoor uses and birds observation. large eyepiece, clear and sharp image. It can provide you with comfortable observing experience. Exquisite design, rubber cover make, can be used in rainy days. Non-waterproof, kept out of water. It can be used together with a tripod mount to keep it steady. shock-resistant and can be used when the light is dim.
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