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  1. Baader Planetarium D-ERF Energy rejection filter 75mm with IR-Cut dielectric coating

    Baader Planetarium - D-ERF Energy Rejection Filter 75mm with IR-Cut Dielectric Coating

    The Baader Planetarium energy rejection filters include new all-dielectric IR rejection coatings to eliminate IR energy heat to produce cold focus.

    ...
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    FREE SHIPPING
    (48 States)
    Model#: DERF-75

    Available

    $349.00

  2. Lunt 50mm Ha Etalon-Filter-System with B600 Blocking Filter for 2"

    Lunt - 50mm Ha Etalon-Filter-System with B600 Blocking Filter for 2" Focuser

    The new Lunt Solar Systems LS50 Hydrogen-Alpha Filter incorporates a unique design feature which decreases chances of decontaction (breakage) and increases solar filter thermal stability

    ...
    Learn More
    Model#: LS50FHa2/B600

    In Stock

    $1,346.00

  3. Lunt 50mm Ha Etalon-Filter-System with B1800 Blocking Filter for 2" Focuser

    Lunt - 50mm Ha Etalon-Filter-System with B1800 Blocking Filter for 2" Focuser

    The new Lunt Solar Systems LS50 Hydrogen-Alpha Filter incorporates a unique design feature which decreases chances of decontaction (breakage) and increases solar filter thermal stability

    ...
    Learn More
    Model#: LS50FHa2/B1800

    In Stock

    $1,996.00

  4. Lunt 50mm Ha Etalon-Filter-System with B1200 Blocking Filter for 2" Focuser

    Lunt - 50mm Ha Etalon-Filter-System with B1200 Blocking Filter for 2" Focuser

    The new Lunt Solar Systems LS50 Hydrogen-Alpha Filter incorporates a unique design feature which decreases chances of decontaction (breakage) and increases solar filter thermal stability

    ...
    Learn More
    Model#: LS50FHa2/B1200

    In Stock

    $1,646.00

  5. Lunt - 50mm Ha Etalon-Filter-System with B600 Blocking Filter for 1.25" Focuser

    Lunt - 50mm Ha Etalon-Filter-System with B600 Blocking Filter for 1.25" Focuser

    The new Lunt Solar Systems LS50 Hydrogen-Alpha Filter incorporates a unique design feature which decreases chances of decontaction (breakage) and increases solar filter thermal stability

    ...
    Learn More
    Model#: LS50FHa1/B600

    In Stock

    $1,346.00

  6. Lunt - 50mm Ha Etalon-Filter-System with B1800 Blocking Filter for 1.25" Focuser

    Lunt - 50mm Ha Etalon-Filter-System with B1800 Blocking Filter for 1.25" Focuser

    The new Lunt Solar Systems LS50 Hydrogen-Alpha Filter incorporates a unique design feature which decreases chances of decontaction (breakage) and increases solar filter thermal stability ... Learn More
    Model#: LS50FHa1/B1800

    In Stock

    $1,996.00

  7. Lunt - 50mm Ha Etalon-Filter-System with B1200 Blocking Filter for 1.25" Focuser

    Lunt - 50mm Ha Etalon-Filter-System with B1200 Blocking Filter for 1.25" Focuser

    The new Lunt Solar Systems LS50 Hydrogen-Alpha Filter incorporates a unique design feature which decreases chances of decontaction (breakage) and increases solar filter thermal stability

    ...
    Learn More
    Model#: LS50FHa1/B1200

    In Stock

    $1,646.00

  8. Lunt 100mm Ha Etalon Filter with B600 for 2" Focuser

    Lunt - 100mm Ha Etalon Filter with B600 for 2" Focuser

    The new Lunt Solar Systems LS100 Hydrogen-Alpha Filter incorporates a unique design feature which ... Learn More
    Model#: LS100FHa2/B600

    In Stock

    $5,846.00

  9. Lunt 100mm Ha Etalon Filter with B1800 for 2" Focuser

    Lunt - 100mm Ha Etalon Filter with B1800 for 2" Focuser

    The new Lunt Solar Systems LS100 Hydrogen-Alpha Filter incorporates a unique design feature

    ...
    Learn More
    Model#: LS100FHa2/B1800

    In Stock

    $6,496.00

  10. Lunt 100mm Ha Etalon Filter with B1200 for 2" Focuser

    Lunt - 100mm Ha Etalon Filter with B1200 for 2" Focuser

    The new Lunt Solar Systems LS100 Hydrogen-Alpha Filter incorporates a unique design feature ... Learn More
    Model#: LS100FHa2/B1200

    In Stock

    $6,146.00

  11. Lunt Calcium Module with B1200 Blocking Filter in Star Diagonal with T2 Connection

    Lunt - Calcium Module with B1200 Blocking Filter in Star Diagonal with T2 Connection

    Calcium K (Ca-K) Telescopes and Filters are used to study the ... Learn More
    Model#: LS12CAKMDD2

    In Stock

    $1,018.00

  12. Lunt - Calcium Module with B1800 Blocking Filter in Star Diagonal with T2 Connection

    Lunt - Calcium Module with B1800 Blocking Filter in Star Diagonal with T2 Connection

    Primarily on imaging systems due to the difficulty of many to visually see in CaK. To be used on telescopes with ... Learn More
    Model#: LS18CAKMDD2

    In Stock

    $1,194.00

  13. Lunt - B3400 Blocking Filter in Straight Thru 2" Tube with T2 and 2" Connection

    Lunt - B3400 Blocking Filter in Straight Thru 2" Tube with T2 and 2" Connection

    The Lunt Solar Systems B3400 Blocking Filter is its own unique system unique located in ... Learn More
    Model#: B3400s2

    In Stock

    $1,798.00

  14. Lunt 60mm H-Alpha Etalon for Double-Stacking on the LS-60

    Lunt - 60mm H-Alpha Etalon for Double-Stacking on the LS-60

    Use the double-stack technique to reduce bandpass and get the best

    ...
    Learn More
    Model#: LS60FHA

    In Stock

    $1,599.00

  15. Lunt - Calcium Module with B600 Blocking Filter in Star Diagonal with T2 Connection

    Lunt - Calcium Module with B600 Blocking Filter in Star Diagonal with T2 Connection

    Calcium K (Ca-K) Telescopes and Filters are used to study the wavelength of 393.4nm. ... Learn More
    Model#: LS6CAKMDD

    In Stock

    $749.00

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

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

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

    ...
    Learn More
    Model#: LS6CAKMDS

    In Stock

    $749.00

  17. Lunt  -  Calcium Module (Ca-K) with B1200 Blocking Filter  -  in Straight Thru 2" Tube with T2 & 2" connection

    Lunt - Calcium Module (Ca-K) with B1200 Blocking Filter - in Straight Thru 2" Tube with T2 & 2" connection

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

    ...
    Learn More
    Model#: LS12CAKMDS2

    In Stock

    $1,018.00

  18. Lunt - Ca-K Module with B1800 Blocking Filter in Extension Tube for 2" Focuser

    Lunt - Ca-K Module with B1800 Blocking Filter in Extension Tube for 2" Focuser

    This Calcium-K module transforms your normal astronomical telescope into a ... Learn More
    Model#: LS18CAKMDS2

    In Stock

    $1,194.00

  19. B600s1

    Lunt - 6mm Straight Thru Blocking Filter 1.25 " - in Extension Tube with T2 and 2 " Connection

    For telescopes with 1.25 inch focuserLunt Solar Systems currently offers 4 blocking filter apertures for use with our Etalon systems.The Blocking Filter houses additional filters which are required for the safety and performance of the solar package ... Learn More
    Model#: B600S1

    In Stock

    $348.00

  20. Lunt - 12mm Straight Thru Blocking filter 1.25" - in Extension Tube with T2 and 2" Connection

    Lunt - 12mm Straight Thru Blocking filter 1.25" - in Extension Tube with T2 and 2" Connection

    The Lunt Solar Systems B1200 Blocking Filter is its own unique ... Learn More
    Model#: B1200S1

    In Stock

    $648.00

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