telescope eyepieces

TMB Planetary II 1.25" 9mm 58º Eyepiece - USED

TMB   ——   SKU: USED13592
$87.75 CAD
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Product Info

his is a TMB Planetary wide angle eyepieces with the focal lengths 9mm. The eyepiece has a standard 1.25" (31.75mm) fitting diameter and it is ideal for use on telescopes/spotting scopes for astronomical observations.


  • Thomas Back Designed Eyepiece (TMB)
  • Brand new & high quality
  • Model: SWA-58-9
  • 5 optical elements in 3 groups
  • Internally baffled
  • FOV: Wide 58 degree field of view
  • Focal length: 9 mm
  • Standard 1.25" (31.75mm) fitting diameter to the scope's eyepiece holder
  • Large eye lens diameter: 21mm
  • Fully multicoated green lenses for excellent image contrast and light transmission
  • Fold-down rubber eyecup
  • Comfortable long eye relief: 16mm
  • Standard 1.25" inner thread to fit light filters
  • Built with metal material
  • Comes with lens caps for both ends
  • Weight: 156g



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