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  1. Coronado - Adapter Plate for TMB-5 SM90

    Coronado - Adapter Plate for TMB-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#: AP140
    $265.10

  2. 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

  3. SM90TDB

    Coronado - Retro fit module for SM90T

    Internal module to lower bandwidth to ... Learn More
    Model#: SM90TDB
    $2,435.00

  4. Coronado - SolarMax II 60mm Filter with RichView™ Tuning with 10mm Blocking Filter

    Coronado - SolarMax II 60mm Filter with RichView™ Tuning with 10mm Blocking Filter

    Coronado - SMF60-BF10

    Coronado by Meade SolarMax II Solar Filter set with RichView tuning system. Includes 60mm diameter primary H-Alpha etalon filter with sub 0.7 angstrom bandwidth and 10mm Blocking Filter. 

    ...
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    Model#: SMF60-10
    $1,399.00

  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
    Model#: AP196
    $208.00

  6. Coronado - Adapter Plate for Celestron 14 SM90

    Coronado - Adapter Plate for Celestron 14 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#: AP145
    $1,012.00

  7. 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

  8. Coronado - Zero Length Adapter

    Coronado - Zero Length Adapter

    Included with all BF30 Blocking filters is the Zero Length adaptor. This allows is also available for anyone who needs to reduce a 2" focuser to 1.25" without adding any length to the system. This allows you to maximize in-focus ... Learn More
    Model#: ZO
    $38.95

  9. sme-90

    Corondo SolarMax II SME-90 double stack filter

    Corondo SolarMax II SME-90 double stack filter ... Learn More
    Model#: SME-90
    $2,399.00

  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 Takahashi FS-80 SM60

    Coronado - Adapter Plate for Takahashi FS-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#: AP150
    $189.00

  12. 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

  13. Coronado - Adapter Plate for Takahashi FS-78 SM40/60 and Takahashi FSQ-106 SM40

    Coronado - Adapter Plate for Takahashi FS-78 SM40/60 and Takahashi FSQ-106 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#: AP120
    $207.90

  14. 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

  15. Coronado - Adapter Plate for Orion ST-120 SM90

    Coronado - Adapter Plate for Orion ST-120 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#: AP158
    $297.00

  16. 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

  17. Coronado - Adapter Plate for Celestron NexStar 60 SM60 and Celestron NexStar 80 SM60

    Coronado - Adapter Plate for Celestron NexStar 60 SM60 and Celestron NexStar 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#: AP157
    $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 TeleVue 85 SM90

    Coronado - Adapter Plate for TeleVue 85 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#: AP165
    $170.50

  20. Coronado PST (

    Coronado - PST (<1A) Personal Solar Telescope

    The Coronado PST solar telescope is equipped to view the sun with security and safety in mind. Unlike other solar telescopes which use regular optics in conjunction with solar filters, the Coronado PST solar telescope has all its optics, both internal and external, solar oriented.

    ...
    Learn More
    Model#: PST
    $699.00

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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!