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Items 61 to 80 of 139 total

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  1. Coronado - Adapter Plate for Pentax 105 DHF SM90

    Coronado - Adapter Plate for Pentax 105 DHF SM90

    Coronado Solar Filter Adapter PlateMost telescopes will require a Coronado built adaptor plate in order to secure the MaxScope series filter to the objective cell. These plates are built by Coronado for most telescope up to 16" in diameter ... Learn More
    Model#: AP170
    $170.50

  2. Coronado - Adapter Plate for Stellarview 80 SM60

    Coronado - Adapter Plate for Stellarview 80 SM60

    Coronado Solar Filter Adapter PlateMost telescopes will require a Coronado built adaptor plate in order to secure the MaxScope series filter to the objective cell. These plates are built by Coronado for most telescope up to 16" in diameter ... Learn More
    Model#: AP171
    $170.50

  3. Coronado - Adapter Plate for Meade 8 " SCT offset

    Coronado - Adapter Plate for Meade 8 " SCT offset

    Coronado Solar Filter Adapter PlateMost telescopes will require a Coronado built adaptor plate in order to secure the MaxScope series filter to the objective cell. These plates are built by Coronado for most telescope up to 16" in diameter ... Learn More
    Model#: AP172
    $402.00

  4. Coronado - Adapter Plate for Meade ETX-125 SM90

    Coronado - Adapter Plate for Meade ETX-125 SM90

    Coronado Solar Filter Adapter PlateMost telescopes will require a Coronado built adaptor plate in order to secure the MaxScope series filter to the objective cell. These plates are built by Coronado for most telescope up to 16" in diameter ... Learn More
    Model#: AP173
    $201.00

  5. Coronado - Adapter Plate for Astro Physics 152 for 145ERF

    Coronado - Adapter Plate for Astro Physics 152 for 145ERF

    Coronado Solar Filter Adapter PlateMost telescopes will require a Coronado built adaptor plate in order to secure the MaxScope series filter to the objective cell. These plates are built by Coronado for most telescope up to 16" in diameter ... Learn More
    Model#: AP175
    $170.50

  6. Coronado - Adapter Plate for Questar 3.5 SM90

    Coronado - Adapter Plate for Questar 3.5 SM90

    Coronado Solar Filter Adapter PlateMost telescopes will require a Coronado built adaptor plate in order to secure the MaxScope series filter to the objective cell. These plates are built by Coronado for most telescope up to 16" in diameter ... Learn More
    Model#: AP177
    $170.50

  7. Coronado - Adapter Plate for Astro Physics 130 SM60

    Coronado - Adapter Plate for Astro Physics 130 SM60

    Coronado Solar Filter Adapter PlateMost telescopes will require a Coronado built adaptor plate in order to secure the MaxScope series filter to the objective cell. These plates are built by Coronado for most telescope up to 16" in diameter ... Learn More
    Model#: AP178
    $265.10

  8. Coronado - Adapter Plate for Gemini 180 / 2.5 Plus SM60

    Coronado - Adapter Plate for Gemini 180 / 2.5 Plus SM60

    Coronado Solar Filter Adapter PlateMost telescopes will require a Coronado built adaptor plate in order to secure the MaxScope series filter to the objective cell. These plates are built by Coronado for most telescope up to 16" in diameter ... Learn More
    Model#: AP179
    $372.90

  9. Coronado - Adapter Plate for Meade 127 ED SM60

    Coronado - Adapter Plate for Meade 127 ED SM60

    Coronado Solar Filter Adapter PlateMost telescopes will require a Coronado built adaptor plate in order to secure the MaxScope series filter to the objective cell. These plates are built by Coronado for most telescope up to 16" in diameter ... Learn More
    Model#: AP180
    $241.00

  10. Coronado - Adapter Plate for Meade 14 " SCT SM90

    Coronado - Adapter Plate for Meade 14 " SCT SM90

    Coronado Solar Filter Adapter PlateMost telescopes will require a Coronado built adaptor plate in order to secure the MaxScope series filter to the objective cell. These plates are built by Coronado for most telescope up to 16" in diameter ... Learn More
    Model#: AP181
    $632.00

  11. Coronado - Adapter Plate for Questar 3.5 SM40

    Coronado - Adapter Plate for Questar 3.5 SM40

    Coronado Solar Filter Adapter PlateMost telescopes will require a Coronado built adaptor plate in order to secure the MaxScope series filter to the objective cell. These plates are built by Coronado for most telescope up to 16" in diameter ... Learn More
    Model#: AP182
    $170.50

  12. Coronado - Adapter Plate for Orion SkyView Delux 90 SM40

    Coronado - Adapter Plate for Orion SkyView Delux 90 SM40

    Coronado Solar Filter Adapter PlateMost telescopes will require a Coronado built adaptor plate in order to secure the MaxScope series filter to the objective cell. These plates are built by Coronado for most telescope up to 16" in diameter ... Learn More
    Model#: AP184
    $170.50

  13. Coronado - Doublestack Adapter for SM40

    Coronado - Doublestack Adapter for SM40

    Coronado Adapter Plates for Double Stacking Filters are required for stacking a Coronado Double Stacking Filter onto an existing Coronado Solarscope. They are designed to specifically fit their matching Coronado Double Stack Filter counterpart ... Learn More
    Model#: AP185
    $75.00

  14. Coronado - Doublestack Adapter for SM60

    Coronado - Doublestack Adapter for SM60

    Coronado Adapter Plates for Double Stacking Filters are required for stacking a Coronado Double Stacking Filter onto an existing Coronado Solarscope ... Learn More
    Model#: AP186
    $75.00

  15. Coronado - Adapter Plate for Astro Physics Stowaway SM90

    Coronado - Adapter Plate for Astro Physics Stowaway SM90

    Coronado Solar Filter Adapter PlateMost telescopes will require a Coronado built adaptor plate in order to secure the MaxScope series filter to the objective cell. These plates are built by Coronado for most telescope up to 16" in diameter ... Learn More
    Model#: AP187
    $207.90

  16. Coronado - 2x Barlow

    Coronado - 2x Barlow

    Coronado Cemax 2x Barlow lensEnhance your view of the sun with the CEMAX 2x Barlow lens. Double the magnification of your eyepiece without losing contrast with the H-Alpha filter ... Learn More
    Model#: BAR
    $129.00

  17. Coronado - 10mm Blocking Filter

    Coronado - 10mm Blocking Filter

    The 10mm Blocking Filter is for use with any of the SolarMax series filters it is optimised to provide a full disc image on telescopes with a focal length up to 1000mm. It is a 1.25" right angled diagonal unit.

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    Model#: BF10
    $499.00

  18. Coronado - 15mm Blocking Filter

    Coronado - 15mm Blocking Filter

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    Model#: BF15
    $699.00

  19. new bf30

    Coronado - 30mm Blocking Filter

    The 30mm Blocking Filter is a 2" straight through design and comes with a 1.25" Zero Length reducer

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    Model#: BF30
    $1,599.00

  20. Coronado - 5mm Blocking Filter

    Coronado - 5mm Blocking Filter

    The 5mm Blocking Filter is for use with any of the SolarMax series for telescopes with a focal length up to 500mm. It is a 1.25" right angled diagonal unit.

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    Model#: BF5
    $329.00

Items 61 to 80 of 139 total

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Coronado has been developing ultra-narrowband filters and associated technologies for the professional market for over 40 years. Experience the Sun the Coronado way in the light of Hydrogen-Alpha (Ha) and open up a whole new world of astronomy! What's so interesting about Hydrogen-Alpha? The red light of H-Alpha with a wavelength of 656.3 nm (1 nm = 1 billionth of a meter) is a very prominent feature in the solar light spectrum since hydrogen makes up 75% by weight of the outer layers of the sun. This light shows us layers up to 1700 km above the sun's visible surface and is especially important for imaging the lower chromosphere.

The bright regions around sunspots, called plages, and brilliant solar flares are easily seen at this wavelength. Filaments, vivid string-like regions, and sunspots, large blotches on the solar surface, appear dark. Filaments on the solar limb appear bright against the blackness of space and are called prominences you have probably seen the stunningly beautiful images of. The Sun is active, ever changing, and constantly entertaining. See the Sun in a new light- the Coronado way!