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  1. Baader Planetarium - S II 8nm CCD Narrowband-Filter 65x65mm (3mm glass thickness) Square

    Baader Planetarium - S II 8nm CCD Narrowband-Filter 65x65mm (3mm glass thickness) Square

    CCD imagers will find Baader's Premium Narrowband CCD passfilters to deliver the absolute highest contrast deep sky images in H-Alpha, H-Beta, Oxygen III, and Sulfur-II, with the shortest exposures possible ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: FSIIN-SQ65

    Available - Ships in 2-4 Days

    $479.00

  2. Baader Planetarium - AstroSolar maximum size, 117x117cm, Telescope Quality, ND = 5.0

    Baader Planetarium - AstroSolar maximum size, 117x117cm, Telescope Quality, ND = 5.0

    Baader Planetarium AstroSolar Safety Film, maximum size- 117x117cm, Telescope 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 ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: ASOLV-L

    Available - Ships in 2-4 Days

    $337.00

  3. Baader Planetarium - Clearglass 65 x 65 (3mm glas thickness) Square

    Baader Planetarium - Clearglass 65 x 65 (3mm glas thickness) Square

    Clear parfocal filters are also available to assist in focusing ... Learn More
    Model#: FC-SQ65

    Available - Ships in 2-4 Days

    $138.00

  4. Baader Planetarium H-alpha 7nm CCD Narrowband-Filter 65x65 (3mm glass thickness) Square

    Baader Planetarium - H-alpha 7nm CCD Narrowband-Filter 65x65 (3mm glass thickness) Square

    CCD imagers will find Baader's Premium Narrowband CCD passfilters to deliver the absolute highest contrast deep sky images in H-Alpha, H-Beta, Oxygen III, and Sulfur-II, with the shortest exposures possible ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: FHALN-SQ65

    Available - Ships in 2-4 Days

    $523.00

  5. Baader Planetarium - AstroSolar Safety Film 20x30cm, Telescope Quality, ND = 5.0

    Baader Planetarium - AstroSolar Safety Film 20x30cm, Telescope Quality, ND = 5.0

    Baader Planetarium AstroSolar Safety Film- 20x30cm, Telescope 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

    ...
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    Model#: ASOLV-S

    In Stock

    $37.00

  6. Baader Planetarium - AstroSolar Safety Film 100x50cm, Telescope Quality, ND = 5.0

    Baader Planetarium - AstroSolar Safety Film 100x50cm, Telescope Quality, ND = 5.0

    Baader Planetarium AstroSolar Safety Film- 100x50cm, Telescope 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

    ...
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    Model#: ASOLV-M

    In Stock

    $88.00

  7. Celestron - Contrast Booster Filter - 1.25"

    Celestron - Contrast Booster Filter - 1.25"

    This is our newest high quality filter that eliminates most color aberration inherent in achromatic refractor telescopes. The filter also reduces your view of the blue hue around lunar and planetary subjects. Features multi-layer coatings for 95% transmission.

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    Model#: CEL-94121

    Available - Ships in 2-4 Days

    $57.00

  8. Celestron - Solar Filter (for NexStar 4GT)

    Celestron - Solar Filter (for NexStar 4GT)

    Celestron Solar Filters are made with Baader Astro Solar Safety Film. Far superior than any existing glass, Mylar or polymer filters, they lead to brighter, sharper, and higher contrast images.

    ...
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    Model#: CEL-94129

    In Stock

    $39.00

  9. Celestron - Solar Filter (Firstscope 70EQ, 80AZ, 80EQ, NexStar 60, NexStar 80)

    Celestron - Solar Filter (Firstscope 70EQ, 80AZ, 80EQ, NexStar 60, NexStar 80)

    These filters are designed to work with our FirstScope 70 and FirstScope 80 telescope models. They also work with our NexStar 60 and NexStar 80 telescopes.

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    Model#: CEL-94135

    Available - Ships in 2-4 Days

    $39.00

  10. Celestron - Solar Filter (for C4-R, Firstscope 102AZ)

    Celestron - Solar Filter (for C4-R, Firstscope 102AZ)

    These filters are designed to work with our Advanced Series C4-R and NexStar 102 telescope models. Celestron Solar Filters are made with Baader Astro Solar Safety Film

    ...
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    Model#: CEL-94138

    In Stock

    $48.00

  11. Celestron - Eyepiece Filter Set 1 - 1.25" (#21, 80A, 15, Polarizing)

    Celestron - Eyepiece Filter Set 1 - 1.25" (#21, 80A, 15, Polarizing)

    Kit includes: 21, 80A, #15, Polarizing filters

    Celestron color filters are mounted in black anodized aluminum cells with the Kodak Wratten Series Number individually engraved, and come available in 4 assorted kits packed in plastic cases. The cells of each filter are double-threaded, so they can be stacked (piggybacked) in various combinations.

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    Model#: CEL-94119-10

    In Stock

    $39.95

  12. Celestron - Eyepiece Filter Set 3 - 1-1/4 " (#23A, 38A, 58, ND-50)

    Celestron - Eyepiece Filter Set 3 - 1-1/4 " (#23A, 38A, 58, ND-50)

    Kit includes: #23A, #38A, #58, ND-50 filtersCelestron color filters are mounted in black anodized aluminum cells with the Kodak Wratten Series Number individually engraved, and come available in 4 assorted kits packed in plastic cases ... Learn More
    Model#: CEL-94119-30

    Available - Ships in 2-4 Days

    Regular Price: $49.95

    Special Price: $39.95

  13. Celestron - Moon Filter  - 1.25"

    Celestron - Moon Filter - 1.25"

    Celestron's Moon Filter is an economical eyepiece filter for reducing the brightness of the moon and improving contrast, so greater detail can be observed on the lunar surface. The clear aperture is 21mm and the transmission is about 18%.

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    Model#: CEL-94119-A

    In Stock

    $13.95

  14. Celestron - LPR Filter (Model B - for back threads of SCTs)

    Celestron - LPR Filter (Model B - for back threads of SCTs)

    Light Pollution Reduction (LPR) Filters are designed to selectively reduce the transmission of certain wavelengths of light, specifically those produced by artificial light.

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    Model#: CEL-94127A

    Available - Ships in 2-4 Days

    $89.00

  15. Celestron - Eyepiece Filter Set 4 - 1-1.25" (#8,15,47,82A)

    Celestron - Eyepiece Filter Set 4 - 1-1.25" (#8,15,47,82A)

    Kit includes: #8, #47, #82A, ND-13 filtersCelestron color filters are mounted in black anodized aluminum cells with the Kodak Wratten Series Number individually engraved, and come available in 4 assorted kits packed in plastic cases.

    ...
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    Model#: CEL-94119-40

    Available - Ships in 2-4 Days

    Regular Price: $49.95

    Special Price: $31.95

  16. Celestron Oxygen III (OIII) Narrowband Filter - 1.25"

    Celestron - Oxygen III (OIII) Narrowband Filter - 1.25"

    The 1-1/4" OIII narrowband filter isolates just the two doubly-ionized oxygen lines (496 and 501nm lines) emitted by planetary and emission nebulae, while blocking the rest of the overall spectrum of light.

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    Model#: CEL-93623

    In Stock

    $79.95

  17. Celestron Oxygen III (OIII) Narrowband Filter 2"

    Celestron - Oxygen III (OIII) Narrowband Filter - 2"

    Each filter has an ultra hard, vacuum-deposited coating carefully designed to block all of the visual spectrum ranging from 400 to 700 nm This eliminates the un-natural colored halos surrounding bright stars common with O III filters of less sophisticated coating technology.

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    Model#: CEL-93624

    In Stock

    $109.95

  18. Celestron - UHC/LPR Filter - 1.25"

    Celestron - UHC/LPR Filter - 1.25"

    The new ultra high contrast (UHC) LPR filter has improved contrast over the typical broadband filters. Sky background is darker, and contrast of emission nebulae are noticeably improved.

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    Model#: CEL-94123

    In Stock

    $74.95

  19. Celestron - UHC/LPR Filter - 2"

    Celestron - UHC/LPR Filter - 2"

    The new ultra high contrast (UHC) LPR filter has improved contrast over the typical broadband filters. Sky background is darker, and contrast of emission nebulae are noticeably improved.

    ...
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    Model#: CEL-94124

    In Stock

    $99.95

  20. Celestron - Solar Filter for AstroMaster 76, PowerSeeker 76

    Celestron - Solar Filter for AstroMaster 76, PowerSeeker 76

    Celestron Solar Filters are made with Baader Astro Solar Safety Film. Far superior than any existing glass, Mylar or polymer filters, they lead to brighter, sharper, and higher contrast images.

    ...
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    Model#: CEL-94227

    Available - Ships in 2-4 Days

    $33.95

Items 81 to 100 of 1160 total

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