Solar Filters

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  1. Lunt - 60mm Calcium Solar-Telescope with B1200 blocking filter and 2 " Crayford Focuser - DISCONTINUED

    $1,267.00
    SKU: LS60TCaK_B1200_C

    This Item Will Be Available in Approximately 1 Month

    This item has been discontinued. Please see the We Also Recommend tab for alternatives.

    The LS60/CaK is a complete Solar Telescope for the Calcium-K line. The refractor based system has a precision aligned CaK optimized doublet achromat with a 60mm aperture. The focal length is 500mm providing a ~4.5mm image through the B1200 blocking filter.

  2. Lunt - 60mm Calcium Solar-Telescope with B1200 blocking filter and 2 " Dual-Speed Focuser - DISCONTINUED

    $1,687.00
    SKU: LS60TCaK_B1200_DS

    This Item Will Be Available in Approximately 1 Month

    This item has been discontinued. Please see the We Also Recommend tab for alternatives.

    The LS60/CaK is a complete Solar Telescope for the Calcium-K line. The refractor based system has a precision aligned CaK optimized doublet achromat with a 60mm aperture. The focal length is 500mm providing a ~4.5mm image thru the B1200 blocking filter and dual-speed focuser..

  3. Lunt - 60mm Calcium Solar-Telescope with B600 blocking filter and 2 " Crayford Focuser - DISCONTINUED

    $967.00
    SKU: LS60TCaK_B600_C

    This Item Will Be Available in Approximately 1 Month

    This item has been discontinued. Please see the We Also Recommend tab for alternatives.

    The LS60/CaK is a complete Solar Telescope for the Calcium-K line. The refractor based system has a precision aligned CaK optimized doublet achromat with a 60mm aperture. The focal length is 500mm providing a ~4.5mm image through the B600 blocking filter.

  4. Lunt - 60mm Calcium Solar-Telescope with B600 Blocking Filter and 2" Dual-Speed Focuser - DISCONTINUED

    $1,387.00
    SKU: LS60TCaK_B600_DS

    This Item Will Be Available in Approximately 1 Month

    This item has been discontinued. Please see the We Also Recommend tab for alternatives.

    The LS60/CaK is a complete Solar Telescope for the Calcium-K line. The refractor based system has a precision aligned CaK optimized doublet achromat with a 60mm aperture. The focal length is 500mm providing a ~4.5mm image through the B600 blocking filter.

  5. Lunt - Cak module for LS152T Telescope 18mm Calcium K - DISCONTINUED

    $2,050.00
    SKU: LS152TCak/B3400

    This Item Will Be Available in Approximately 1 Month

    This item has been discontinued.

     Cak module for LS152T telescope 18mm Calcium K  Module for the LS152T has internal narrow band filters allowing for a <2.4 Angstrom band pass

  6. Lunt - Cak Module for LS152T Telescope 18mm Calcium K - DISCONTINUED

    $1,350.00
    SKU: LS152TCak/B1800

    This Item Will Be Available in Approximately 1 Month

    This item has been discontinued.

     Cak module for LS152T telescope 18mm Calcium K  Module for the LS152T has internal narrow band filters allowing for a <2.4 Angstrom band pass

  7. DayStar Filters - T-Scanner Sodium D 0.4Å

    $4,500.00
    SKU: DAY-NAD.4TS

    Wait Time is 3-5 Days

    Since sodium lines tend to be quite narrow, DayStar Filters has built a narrow filtering system of Sodium Na-D (5895.9Å) to accommodate this of <0.5Å to isolate the lines from continuum.

    FREE SHIPPING(48 States)
  8. Lunt - Calcium Module (Ca-K) with B1200 Blocking Filter - in Straight Thru 2" Tube with T2 & 2" connection

    $1,018.00
    SKU: LS1200CAKS

    Wait Time is 3-5 Days

    Lunt Calcium K B1200 CAK Straight

    Calcium K (Ca-K) Telescopes and Filters are used to study the

  9. Baader - D-ERF Energy Rejection Filter 180mm with IR-Cut Dielectric Coating

    $1,857.00
    SKU: BAA-DERF-180

    Wait Time is 3-5 Days

    Baader Planetarium D-ERF Energy Rejection Filter, 180mm with IR-Cut Dielectric CoatingBaader planetarium has introduced a new evolution in their premium energy rejection filters, from 70mm up to 180mm! These filters incorporate a new all-dielectric IR re
    FREE SHIPPING(48 States)
  10. Baader - D-ERF Energy Rejection Filter 160mm with IR-Cut Dielectric Coating

    $1,254.00
    SKU: BAA-DERF-160

    Wait Time is 3-5 Days

    Baader Planetarium D-ERF Energy Rejection Filter, 160mm with IR-Cut Dielectric CoatingBaader planetarium has introduced a new evolution in their premium energy rejection filters, from 70mm up to 180mm! These filters incorporate a new all-dielectric IR re
    FREE SHIPPING(48 States)
  11. Baader - D-ERF Energy Rejection Filter 135mm with IR-Cut Dielectric Coating

    $999.00
    SKU: BAA-DERF-135

    Wait Time is 3-5 Days

    Baader Planetarium D-ERF Energy Rejection Filter, 135mm with IR-Cut Dielectric CoatingBaader planetarium has introduced a new evolution in their premium energy rejection filters, from 70mm up to 180mm! These filters incorporate a new all-dielectric IR re
    FREE SHIPPING(48 States)
  12. Baader - D-ERF Energy Rejection Filter 90mm with IR-Cut Dielectric Coating

    $497.00
    SKU: BAA-DERF-90

    Wait Time is 3-5 Days

    Baader Planetarium D-ERF Energy Rejection Filter, 90mm with IR-Cut Dielectric CoatingBaader planetarium has introduced a new evolution in their premium energy rejection filters, from 70mm up to 180mm! These filters incorporate a new all-dielectric IR rej
    FREE SHIPPING(48 States)
  13. Baader - D-ERF Energy Rejection Filter 110mm with IR-Cut Dielectric Coating

    $627.00
    SKU: BAA-DERF-110

    Wait Time is 3-5 Days

    Baader Planetarium D-ERF Energy Rejection Filter, 110mm with IR-Cut Dielectric CoatingBaader planetarium has introduced a new evolution in their premium energy rejection filters, from 70mm up to 180mm! These filters incorporate a new all-dielectric IR re
    FREE SHIPPING(48 States)
  14. Baader - AstroSolar Solar Film 20x30cm, Telescope Quality, ND = 5.0

    $37.00
    SKU: BAA-ASOLV-S

    In stock

    Baader Planetarium AstroSolar Safety Film- 20x30cm, Visual Quality, ND = 5.0Baader Planetarium's AstroSolar™ Safety Film delivers white light views of the Sun that are unmatched by any other objective solar filter or material

  15. Baader - AstroSolar Solar Film 100x50cm, Telescope Quality, ND = 5.0

    $88.00
    SKU: BAA-ASOLV-M

    In stock

    Baader Planetarium AstroSolar Solar Safety Film- 100x50cm, Visual Quality, ND = 5.0Baader Planetarium's AstroSolar™ Safety Film delivers white light views of the Sun that are unmatched by any other objective solar filter or material

  16. Coronado - 10mm Blocking Filter

    $499.00
    SKU: COR-BF10

    In stock

    The Coronado 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.

    FREE SHIPPING(48 States)
  17. Coronado - 15mm Solar Blocking Filter

    $699.00
    SKU: COR-BF15

    Wait Time is 3-5 Days

    The Coronado 15mm Blocking Filter is a secondary interference filter part of a two filter system. Solar Blocking Filters are designed to be paired with a Meade Coronado Solarmax primary solar filter. 15mm blocking filters are best for telescopes up to 1500mm in focal length.
    FREE SHIPPING(48 States)
  18. Coronado - 30mm Solar Blocking Filter

    $1,599.00
    SKU: COR-BF30

    In stock

    The Coronado 30mm Blocking Filter is a 2" straight through design and comes with a 1.25" Zero Length reducer. Recommended for photographic use on telescopes with focal lengths up to 3000mm. Coronado blocking filters are part of a two part filter system and should not be used alone. Be sure to pair this blocking filter with a Meade Coronado Solarmax primary solar filter.

    FREE SHIPPING(48 States)
  19. Coronado - 5mm Blocking Filter

    $329.00
    SKU: COR-BF5

    In stock

    The Coronado 5mm Blocking Filter is a secondary filter for use with any of the Meade Corondo SolarMax Filter series for telescopes with a focal length up to 500mm. It is a 1.25" right angled diagonal unit. Blocking filters are not complete solar filters, they require a primary solar filter. Please do not use a blocking filter alone.
    FREE SHIPPING(48 States)
  20. Coronado - Narrowband Element Front Unit 40mm

    $895.00
    SKU: COR-SM40

    Wait Time is 3-5 Days

    H-Alpha 40mm narrowband unit for use in doublestacking. Cannot be used without secondary interference filter. Comes with T-Max tuner. Needs a SM40 Doublestack Adapter Plate (sold separately) in order to attach to a SolarMax 40
    FREE SHIPPING(48 States)
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Viewing the Sun safely doesn't have to be expensive! Solar filters are an economical way to take advantage of your current telescope but still see or photograph the Sun in awesome detail while keeping your eyes and camera safe.  Filters come in two basic types for solar observing and imaging: broadband and narrowband. Broadband filters are often referred to as white light filters because they allow the full color spectrum through but block out harmful UV rays creating a grayish white image of the Sun. White light filters are best suited to viewing sun spots and are the most economical choice. They come a wide range of sizes and individual sheets to fit any telescope or binoculars you might need Narrowband filters filter the Sun's light to a specific wavelength. For solar observing this is typically either H-Alpha or Calcium. These filters come in a limited range of apertures and, in many cases, require an adapter to attach to your existing telescope. Narrowband filters must also be paired with a blocking filter to reduce the intensity of the light before it reaches your eye or camera and usually sold as a set. H-Alpha filters provide a false color image of the Sun in an orange/yellow tint and enhance solar flares. Calcium filters produce a blue/violet image of the Sun and are typically best suited to imaging. Having trouble finding the ideal filter? Chat with us! We're here to help you choose.