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SVBONY 1.25" 31.7mm 0.5X Focal Reducer Thread M28x0.6 for Telescope Eyepiece Astronomy (Black)

Product Description




  • 100% brand new
  • Fits all standard 1.25" scope eyepieces
  • Its role is to shorten the focal length, increasing the field of view, usually for a longer focal length telescope
  • The reducer has standard 1.25inch telescope threads M28.5x0.6 and fits onto the nose of any 1.25 inch eyepiece, diagonal, extender tube, or camera adaptor fitting that format
  • Reduces your telescope's focal ratio by 0.5
  • Increases imaging area
  • Optical lens helps transmit more light
  • Can both have a filter attached and be threaded onto an eyepiece or camera
  • Nice anodized aluminum housing
  • It is not recommended for very fast scopes or very wide angle eyepieces for visual


  • Brand: SVBONY
  • Focal Reducer: 0.5X
  • Lens Material: pure optical glass lens
  • Lens material: Broadband coating
  • Sleeve material: Metal
  • Barrel Size: 1.25 inch / 31.7mm
  • Thread interface: M28x0.6 pitch (Fine Thread)
  • Total item length (including external thread): 0.55inch / 14mm
  • Total item length (excluding external thread): 0.43inch / 11mm
  • Clear aperture: 0.87inch / 22mm
  • Weight: 0.42oz / 12g
  • Color: Black

Package Include:

  • 1 X SVBONY 1.25" Telescope 0.5X Focal Reducer

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Svbony focus on telescope and optical accessories. Aim to supply the high quality products and best service to customers. Main items are including Telescope, Monocular, Binocular, Spotting scope, filter, eyepiece and other accessories. We hope that you could enjoy a much more clorful life by using our products.


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    Filed under: Eyepieces & Accessories