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  1. 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

  2. Coronado - 12mm,18mm,25mm Eyepiece and 2x Barlow and Travel Case

    Coronado - 12mm,18mm,25mm Eyepiece and 2x Barlow and Travel Case

     Coronado Cemax Eyepiece Set, 12mm, 18mm, 25mm, Barlow; 1.25"Coronado CEMAX Eyepiece set -  4 specialty eyepieces for use with Coronado H-alpha Solar Telescopes and filters. Complete set of three 1.25" diameter eyepieces with 2X Barlow ... Learn More
    Model#: CEP
    $279.00

  3. Coronado - 15mm Block Filter: Straight Through

    Coronado - 15mm Block Filter: Straight Through

    The 15mm 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 1,500mm. It is a 1.25" right angled diagonal unit ... Learn More
    Model#: BF15ST
    $870.00

  4. Coronado - 15mm Blocking Filter

    Coronado - 15mm Blocking Filter

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    Model#: BF15
    $699.00

  5. Coronado - 18mm and 25mm CE Eyepiece Kit

    Coronado - 18mm and 25mm CE Eyepiece Kit

    Coronado takes enormous care to optimize contrast by minimizing the number of components and designing them so that they do not result in creating residual reflections and spurious light near the image. ... Learn More
    Model#: CE18_CE25

    Regular Price: $258.00

    Special Price: $139.99

  6. 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
    $77.95

  7. 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

  8. Coronado - 40mm Ha Narrowband Element Front Unit & TMax Tuner for Double Stacking a PST Telescope

    Coronado - 40mm Ha Narrowband Element Front Unit & TMax Tuner for Double Stacking a PST Telescope

    Double-stack your Coronado PST with this 40mm double stacking filter and see more! No need to send it into Coronado for matchingjust screw the doublestack filter onto the end of your Personal Solar Telescope ... Learn More
    Model#: PSM40

    Regular Price: $795.00

    Special Price: $580.00

  9. 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

  10. Coronado - 60mm Ha Narrowband Element Front Unit & TMax Tuner for Double Stacking

    DISCONTINUED: Coronado - 60mm Ha Narrowband Element Front Unit & TMax Tuner for Double Stacking

    H-Alpha 60mm narrowband unit for use in doublestacking. Cannot be used without secondary interference filter. Comes with T-Max tuner. Needs a SM60 Doublestack Adapter Plate (sold separately) in order to attach to a SolarMax 60 ... Learn More
    Model#: SM60
  11. 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

  12. Coronado - Adapter Plate for Astro Physics 130/4" SM90

    Coronado - Adapter Plate for Astro Physics 130/4" 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#: AP141
    $170.50

  13. 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

  14. Coronado Adapter Plate for Astro Physics 155 SM90

    Coronado - Adapter Plate for Astro Physics 155 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#: AP132
    $246.40

  15. Coronado - Adapter Plate for Astro Physics 90 SM90

    Coronado - Adapter Plate for Astro Physics 90 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#: AP151
    $207.90

  16. Coronado - Adapter Plate for Astro Physics EDL-92 SM60

    Coronado - Adapter Plate for Astro Physics EDL-92 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#: AP106
    $170.50

  17. Coronado - Adapter Plate for Astro Physics Starfire 7 SM90

    Coronado - Adapter Plate for Astro Physics Starfire 7 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#: AP163
    $372.90

  18. Coronado - Adapter Plate for Astro Physics Stowaway SM60

    Coronado - Adapter Plate for Astro Physics Stowaway 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#: AP152
    $207.90

  19. 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

  20. Coronado - Adapter Plate for Astro Physics Traveler SM90

    Coronado - Adapter Plate for Astro Physics Traveler 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#: AP110
    $221.10

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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!