Calcium & Sodium Filters

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  1. Lunt - CaK Module for the LS152T Scope

    $1,349.00
    SKU: LS152TCAKMD

    This Item Will Be Available in Approximately 1 Month

    Cak module for LS152T telescope 12mm Calcium K  Module for the LS152T has internal narrow band filters allowing for a <2.4 Angstrom bandpass. Includes Crayford style focuser and adapter for scopes

  2. DayStar Filters - Calcium Quark Filter

    $1,195.00
    SKU: DAY-DSZCH

    In stock

    This All-In-One design marries high quality components of adapters, snouts and Daystar Calcium H filter into one simple assembly.

    FREE SHIPPING(48 States)
  3. DayStar - Quark Sodium D Filter

    $1,195.00
    SKU: DAY-DSZSD

    In stock

    Customers have been asking for it, so Daystar has introduced a Sodium D line version of the Quark, serving as an excellent solar accessory for f/4-f/9 refractors. The sodium gives remarkable views of active regions of the sun as well as plage and granulation in a yellow or orange color.

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

    $1,018.00
    SKU: LS12CAKMDS2

    Wait Time is 3-5 Days

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

  5. Lunt - Calcium Module with B600 Blocking Filter in Extension Tube with T2 Connection

    $749.00
    SKU: LS6CAKMDS

    This Item Will Be Available in Approximately 1 Month

    Calcium K (Ca-K) Telescopes and Filters are used to study the wavelength of 393.4nm.

  6. DayStar Filters - Quantum Sodium D 0.4Å PE Solar Filter

    $8,280.00
    SKU: DAY-NAD.4UNI

    Wait Time is 3-5 Days

    The DayStar Sodium Na-D Filter system is designed for both visual users and photographers for sub-angstrom observations.

    FREE SHIPPING(48 States)
  7. DayStar Filters - T-Scanner Calcium II H 5Å

    $4,000.00
    SKU: DAY-CH5ATS

    Wait Time is 3-5 Days

    The DayStar Calcium H and Calcium K line filter system allows for observation of both 3969Å and 3933.7Å. The H-line (3969Å) is unique in that most solar research doesn't consider it in observation due to its close proximity to the Hydrogen Epsilon line.

    FREE SHIPPING(48 States)
  8. 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)
  9. 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

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Serving as alternatives to traditional H-Alpha filters, Calcium K and Sodium D solar filters provide varying detail enhancement. Calcium K filters produce a blue violet image of the Sun and are popularly used for imaging and can be a great alternative for older viewers thanks to the blue tint providing a higher contrast view. Sodium D solar filters produce a yellow/orange view of the Sun much like H-Alpha filters and are designed for closer study of the Sun's surface activities.