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  1. 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
    FREE SHIPPING
    (48 States)
    Model#: SM60
  2. Coronado - Doublestack Adapter Plate for SM90

    Coronado - Doublestack Adapter Plate for SM90

    Coronado Adapter Plates for Double Stacking Filters are required for stacking a Coronado Double Stacking Filter onto an existing Coronado Solarscope ... Learn More
    Model#: AP190
    $75.00

  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
    FREE SHIPPING
    (48 States)
    Model#: BF15ST
    $870.00

  4. Coronado - Adapter Plates for 8 " SCT SM60

    Coronado - Adapter Plates for 8 " SCT SM60

    Coronado Adapter Plates for Double Stacking Filters are required for stacking a Coronado Double Stacking Filter onto an existing Coronado Solarscope ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: AP194
    $208.00

  5. Coronado - Adapter Plate for Ganymede 185

    Coronado - Adapter Plate for Ganymede 185

    Coronado Adapter Plates for Double Stacking Filters are required for stacking a Coronado Double Stacking Filter onto an existing Coronado Solarscope ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: AP196
    $208.00

  6. Coronado - Adapter Plate for JMI Focuser

    Coronado - Adapter Plate for JMI Focuser

    Coronado Adapter Plates for Double Stacking Filters are required for stacking a Coronado Double Stacking Filter onto an existing Coronado Solarscope ... Learn More
    Model#: APJMI
    $199.00

  7. Coronado - Adapter Plate for Orion ED 80 SM60

    Coronado - Adapter Plate for Orion ED 80 SM60

    Coronado Adapter Plates for Double Stacking Filters are required for stacking a Coronado Double Stacking Filter onto an existing Coronado Solarscope ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: AP188
    $208.00

  8. Coronado - Adapter Plate for Orion vixen FLS80

    Coronado - Adapter Plate for Orion vixen FLS80

    Coronado Adapter Plates for Double Stacking Filters are required for stacking a Coronado Double Stacking Filter onto an existing Coronado Solarscope ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: AP195
    $208.00

  9. Coronado - Adapter Plate for Takahashi FSQ-106 SM40

    Coronado - Adapter Plate for Takahashi FSQ-106 SM40

    The Adapter Plate AP122 from Coronado is designed to mount a SolarMax 40 filter to a Takahashi FSQ-106 telescope.SolarMax filters are not stand-alone devices; they must be used in conjunction with a secondary interference/blocking filter ... Learn More
    Model#: AP122
    $171.00

  10. 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

  11. Coronado Adapter Plate for TeleVue Pronto SM40

    Coronado - Adapter Plate for TeleVue Pronto 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#: AP102
    $170.50

  12. 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

  13. Coronado - Adapter Plate for Borg 50 SM40

    Coronado - Adapter Plate for Borg 50 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#: AP107
    $170.50

  14. Coronado Adapter Plate for Meade ETX-125 SM60

    Coronado - Adapter Plate for Meade ETX-125 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
    FREE SHIPPING
    (48 States)
    Model#: AP108
    $241.00

  15. 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
    FREE SHIPPING
    (48 States)
    Model#: AP110
    $221.10

  16. Coronado - Adapter Plate for Takahashi Sky 90 SM40

    Coronado - Adapter Plate for Takahashi Sky 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#: AP111
    $170.50

  17. Coronado - Adapter Plate for Celestron 80 SM40 and Orion ST-80 SM40

    Coronado - Adapter Plate for Celestron 80 SM40 and Orion ST-80 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
    FREE SHIPPING
    (48 States)
    Model#: AP113
    $207.90

  18. Coronado - Adapter Plate for TeleVue 85 SM40

    Coronado - Adapter Plate for TeleVue 85 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#: AP114
    $170.50

  19. Coronado - Adapter Plate for Meade ETX-90 SM40

    Coronado - Adapter Plate for Meade ETX-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#: AP115
    $155.00

  20. Coronado - Adapter Plate for TeleVue Ranger SM40

    Coronado - Adapter Plate for TeleVue Ranger 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#: AP116
    $170.50

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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!