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W9130A-0717-1_01  
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Features:

  • SVBONY super-wide angle 1.25" zoom eyepiece.
  • The zoom eyepiece allows you to change magnification power without swapping out eyepieces.
  • 5-Elements / 3-groups made of high index glass deliver sharp, high contrast vistas.
  • A simple twist of the zoom eyepiece housing changes the focal length from 30mm to 10mm, providing a variety of viewing magnification powers.
  • Exceptionally long 17mm-18.5mm eye relief range allows eyeglass wearers to enjoy the entire field of view without needing to remove their glasses
  • Sleek black barrel with safety undercut to reduce the possibility of the eyepiece slipping out of the focuser or diagonal.
  • Blackened lens edges, anti-reflection threads for maximum contrast.
Package Includes
  • SV170 Black 1.25in 10-30mm zoom eyepiece
  • Two Rubber Dust cover
  • Mirror Cloth
 
  W9130A(1) 
Model SV135 SV170 SV171
Focal length  7-21mm 10-30mm 8-24mm
Eye Relief 18mm - 16.3mm 17-18.5mm 18-19.5mm
Zoon Type Linear    
Lens structure 6PCS / 4group 5 -Elements/-3Groups 7-Elements/4-Groups
Interpupillary Dist. 15mm    
Barrel Size 1.25" 1.25" 1.25"
Field of view 57° ~ 40° 33°-51° 38°-56°
Coatings Fully Multi-Coated-Green Fully Multi-Coated Fully Multi-Coated
Rubber Eye Guard Yes    
Blackened Lens Edges   Yes  Yes
Barrel Safety Recess    Yes  Yes
Eyecups Meterial  Metal Metal Metal
Eyecups   Twist-Up Twist-Up
Thread Size M28.5*0.6 M28.5 x 0.6 M28.5 x 0.6
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