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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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  • For any exchange or refund, we need the product must be in its original receipt, including the box, packaging and all the accessories.
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  • If you want more items or make wholesale order, feel free to contact us. We will offer you a good discount!




    Filed under: Eyepieces & Accessories