Telescope Focal Extenders & Reducers | Telescope Wolves

Focal extenders and focal reducers allow you to change the effective focal length of your telescope, giving you greater flexibility for visual observing and astrophotography. Focal extenders increase magnification for detailed planetary and lunar viewing, while focal reducers shorten focal length to provide wider fields of view and faster imaging.

At Telescope Wolves, our focal extender and reducer collection includes Barlow lenses, focal extenders, and focal reducers from trusted astronomy brands. Each item is selected for optical quality, mechanical precision, and compatibility with a wide range of telescopes, cameras, and accessories.

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14 products

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14 products

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  • SVBONY SV209 0.8x focal reducer for telescopes W9161B ideal for beginner astrophotography reducing focal length for faster wider field imaging of deep sky objects galaxies and nebulae — Telescope Wolves
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    SVBONY SV209 0.8x Focal Reducer for Telescopes – W9161B

    Price: $198.99 USD
    List Price:
    Price: $198.99 USD
  • SVBONY SV193 2 inch 0.8x focal reducer for SV503 80ED telescope W9152B ideal for beginner astrophotography reducing focal length for faster wider field imaging of nebulae galaxies and deep sky objects — Telescope Wolves
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    SVBONY SV193 2-Inch 0.8x Focal Reducer for SV503 80ED Telescope – W9152B

    Price: $89.99 USD
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    Price: $89.99 USD
  • Vixen HD focal reducer ES37247 ideal for beginner astrophotographers and visual observers providing a wider field of view faster focal ratio and shorter exposure times for capturing stunning wide field deep sky images of nebulae galaxies and star clusters and enjoying wider more immersive visual views through compatible telescopes — Telescope Wolves
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    Vixen HD Focal Reducer for Telescopes – Wider Field of View for Astrophotography & Visual Observing (ES37247)

    Price: $243.99 USD
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    Price: $243.99 USD
  • Vixen SD reducer HD kit ES37245 high performance telescope focal reducer ideal for beginner astrophotographers providing a wider field of view faster focal ratio sharper star images and shorter exposure times for capturing stunning wide field deep sky photos of nebulae galaxies and star clusters with compatible SD series refractor telescopes — Telescope Wolves
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    Vixen SD Reducer HD Kit – Telescope Lens Reducer for Wider Photos & Sharper Night Sky Images (ES37245)

    Price: $504.99 USD
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    Price: $504.99 USD
  • Vixen focal reducer for ED80Sf telescope ES37233-SO wide field astrophotography adapter designed exclusively for Sony Alpha cameras ideal for beginner astrophotographers providing a wider field of view faster focal ratio and shorter exposure times for capturing stunning wide field deep sky images of nebulae galaxies and star clusters with the ED80Sf refractor and Sony Alpha mirrorless camera — Telescope Wolves
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    `Vixen Focal Reducer for ED80Sf Telescope – Wide-Field Astrophotography Adapter for Sony Alpha Cameras (ES37233-SO)`

    Price: $309.99 USD
    List Price:
    Price: $309.99 USD
  • Vixen focal reducer for ED80Sf telescope ES37231-SO wide field astrophotography adapter designed exclusively for Nikon cameras ideal for beginner astrophotographers providing a wider field of view faster focal ratio and shorter exposure times for capturing stunning wide field deep sky images of nebulae galaxies and star clusters with the ED80Sf refractor and Nikon DSLR or mirrorless camera — Telescope Wolves
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    Vixen Focal Reducer for ED80Sf Telescope – Wide-Field Astrophotography Adapter for Nikon Cameras (ES37231-SO)`

    Price: $309.99 USD
    List Price:
    Price: $309.99 USD
  • Vixen focal reducer 2 for VC200L telescope ES37229 ideal for beginner astrophotographers providing a wider field of view faster focal ratio and shorter exposure times for capturing stunning wide field deep sky images of nebulae galaxies and star clusters with the VC200L telescope — Telescope Wolves
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    Vixen Focal Reducer 2 for VC200L Telescope – Wider Field of View for Astrophotography & Deep Sky Imaging (ES37229)`

    Price: $208.99 USD
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    Price: $208.99 USD
  • Vixen 0.7x focal reducer for AX103S telescope ES37228-SO ideal for beginner astrophotographers providing a significantly wider field of view faster focal ratio and shorter exposure times for capturing stunning wide field deep sky images of nebulae galaxies and star clusters with the AX103S refractor telescope — Telescope Wolves
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    Vixen 0.7x Focal Reducer for AX103S Telescope – Capture a Wider Field of View for Deep Sky Astrophotography (ES37228-SO)

    Price: $208.99 USD
    List Price:
    Price: $208.99 USD