Solar & Energy Rejection Filters for Safe Observing | Telescope Wolves

Solar and energy rejection filters are essential for safe, high-quality solar observing. Solar filters reduce harmful sunlight, while energy rejection filters (ERFs) manage heat and protect telescope optics during imaging or visual observation. Together, they ensure safe, clear, and sharp views of the Sun in hydrogen-alpha and white-light setups.

At Telescope Wolves, our collection includes precision solar filters and ERFs designed for compatibility with a wide range of telescopes and solar observing systems. Each product is chosen for optical quality, thermal stability, and reliable performance, helping you safely explore solar features with confidence.


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62 products

  • DayStar Blocker & Trimmer Restoration – Quantum SE/ATM Ds-BT
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    DayStar Blocker & Trimmer Restoration – Quantum SE/ATM Ds-BT

    Price: $995.00 USD
    List Price:
    Price: $995.00 USD
  • DayStar 115mm Off-Axis ERF Glass, Cell & 410mm ID Cap – For SCT Telescopes (E-410F115)
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    DayStar 115mm Off-Axis ERF Glass, Cell & 410mm ID Cap – For SCT Telescopes (E-410F115)

    Price: $1,195.00 USD
    List Price:
    Price: $1,195.00 USD
  • DayStar 115mm Off-Axis ERF Glass, Cell & 410mm ID Cap – For SCT Telescopes (E-410F115)
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    DayStar 115mm Off-Axis ERF Glass, Cell & 410mm ID Cap – For SCT Telescopes (E-410F115)

    Price: $1,195.00 USD
    List Price:
    Price: $1,195.00 USD
  • DayStar 100mm Off-Axis ERF Glass, Cell & 356mm ID Cap – For SCT Telescopes (E-356F100)
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    DayStar 100mm Off-Axis ERF Glass, Cell & 356mm ID Cap – For SCT Telescopes (E-356F100)

    Price: $895.00 USD
    List Price:
    Price: $895.00 USD
  • DayStar 90mm Off-Axis ERF Glass, Cell & 311mm ID Cap – For SCT Telescopes (E-325F90)
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    DayStar 90mm Off-Axis ERF Glass, Cell & 311mm ID Cap – For SCT Telescopes (E-325F90)

    Price: $695.00 USD
    List Price:
    Price: $695.00 USD
  • DayStar 80mm Off-Axis ERF Glass, Cell & 311mm ID Cap – For SCT Telescopes (E-311F80)
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    DayStar 80mm Off-Axis ERF Glass, Cell & 311mm ID Cap – For SCT Telescopes (E-311F80)

    Price: $550.00 USD
    List Price:
    Price: $550.00 USD

  • DayStar 80mm Off-Axis ERF Glass, Cell & 281mm ID Cap – For SCT Telescopes (E-281F80)

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    Price: $550.00 USD
    List Price:
    Price: $550.00 USD
  • DayStar 63mm Off-Axis ERF Glass with Cell & 244mm ID Cap – For SCT Telescopes (E-244F63)
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    DayStar 63mm Off-Axis ERF Glass with Cell & 244mm ID Cap – For SCT Telescopes (E-244F63)

    Price: $550.00 USD
    List Price:
    Price: $550.00 USD