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  1. TO - LP-4  H-Beta (Red Cell)  1.25"

    TO - LP-4 H-Beta (Red Cell) 1.25"

    Thousand Oaks Optical LP-4 H-Beta (Red Cell) 1.25" FilterEnhance your deep sky viewing with the latest in multi-layer coating technology. Thousand Oaks filters transmit desired wave-lengths in a very steep slope rather than ... Learn More
    Model#: LP4-1.25
    $89.00

  2. TO - LP-3  OIII (Green Cell)  2"

    TO - LP-3 OIII (Green Cell) 2"

    ... Learn More
    Model#: LP3-2
    $179.00

  3. TO LP-3 OIII (Green Cell) 1.25"

    TO - LP-3 OIII (Green Cell) 1.25"

    ... Learn More
    Model#: LP3-1.25
    $89.00

  4. TO - LP-2  Narrowband (Blue Cell)  2"

    TO - LP-2 Narrowband (Blue Cell) 2"

    LP-2 Narrowband (Blue Cell) 2" FilterEnhance your deep sky viewing with the latest in multi-layer coating technology. Thousand Oaks filters transmit desired wave-lengths in a very steep slope rather than ... Learn More
    Model#: LP2-2
    $179.00

  5. TO - LP-2  Narrowband (Blue Cell)  1.25"

    TO - LP-2 Narrowband (Blue Cell) 1.25"

    Thousand Oaks Optical LP-2 Narrowband (Blue Cell) 1.25" FilterEnhance your deep sky viewing with the latest in multi-layer coating technology. Thousand Oaks filters transmit desired wave-lengths in a very steep slope rather than ... Learn More
    Model#: LP2-1.25
    $89.00

  6. TO - OFF-AXIS Glass Solar Filter TYPE 2+ for Meade 10 " Schmidt-Cassegrain Telescopes

    TO - OFF-AXIS Glass Solar Filter TYPE 2+ for Meade 10 " Schmidt-Cassegrain Telescopes

    Made with high quality hand select glass coated with our exclusive Solar II Plus. The most durable glass filter on the market. Guaranteed fifteen years.

    ...
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    Model#: TO12000A
    $109.00

  7. TO - OFF-AXIS Glass Solar Filter TYPE 2+ for Celestron C-11 Telescopes

    TO - OFF-AXIS Glass Solar Filter TYPE 2+ for Celestron C-11 Telescopes

    Made with high quality hand select glass coated with our exclusive Solar II Plus. The most durable glass filter on the market. Guaranteed fifteen years.

    ...
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    Model#: TO12500A
    $119.00

  8. TO - Full Aperture Glass Solar Filter TYPE 2+ for Celestron Firstscope 60 older Telescopes

    TO - Full Aperture Glass Solar Filter TYPE 2+ for Celestron Firstscope 60 older Telescopes

    Made with high quality hand select glass coated with our exclusive Solar II Plus. The most durable glass filter on the market. Guaranteed fifteen years.

    ...
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    Model#: TO2000
    $69.00

  9. TO2.4-3.1HACA

    TO - 2.4 - 3.1 " H-Alpha Filter CENTER-AXIS

    The H-Alpha (Hydrogen-Alpha) filter allows safe observation .. ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: TO2.4-3.1HACA
    $779.00

  10. TO - OFF-AXIS Glass Solar Filter TYPE 2+ for Meade DS-16 Telescopes

    TO - OFF-AXIS Glass Solar Filter TYPE 2+ for Meade DS-16 Telescopes

    Off Axis Type 2+ Glass Solar Filter For Meade DS-16Clear ApertureOuter Cell I.D.ApplicationPart #152mm / 6.00"485mm / 19 ... Learn More
    Model#: TO19000A
    $179.00

  11. TO - Full Aperture Glass Solar Filter TYPE 2+ for Meade DS-16 Telescopes

    TO - Full Aperture Glass Solar Filter TYPE 2+ for Meade DS-16 Telescopes

    Made with high quality hand select glass coated with our exclusive Solar II Plus. The most durable glass filter on the market. Guaranteed fifteen years.

    ...
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    FREE SHIPPING
    (48 States)
    Model#: TO19000
    $229.00

  12. TO - OFF-AXIS Glass Solar Filter TYPE 2+ for Meade 16 " Schmidt-Cassegrain Telescopes

    TO - OFF-AXIS Glass Solar Filter TYPE 2+ for Meade 16 " Schmidt-Cassegrain Telescopes

    Made with high quality hand select glass coated with our exclusive Solar II Plus. The most durable glass filter on the market. Guaranteed fifteen years.

    ...
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    Model#: TO17625A
    $179.00

  13. TO - 16 " H-Alpha Filter OFF-AXIS

    TO - 16 " H-Alpha Filter OFF-AXIS

    The H-Alpha (Hydrogen-Alpha) filter allows safe observation of the entire solar disc, providing superb .. ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: TO16HAOA
    $1,059.00

  14. TO - OFF-AXIS Glass Solar Filter TYPE 2+ for Meade 14 " Schmidt-Cassegrain Telescopes

    TO - OFF-AXIS Glass Solar Filter TYPE 2+ for Meade 14 " Schmidt-Cassegrain Telescopes

    Made with high quality hand select glass coated with our exclusive Solar II Plus. The most durable glass filter on the market. Guaranteed fifteen years.

    ...
    Learn More
    Model#: TO16000A
    $149.00

  15. TO - OFF-AXIS Glass Solar Filter TYPE 2+ for Celestron C-14 Telescopes

    TO - OFF-AXIS Glass Solar Filter TYPE 2+ for Celestron C-14 Telescopes

    Made with high quality hand select glass coated with our exclusive Solar II Plus. The most durable glass filter on the market. Guaranteed fifteen years.

    ...
    Learn More
    Model#: TO15750A
    $149.00

  16. TO - 14 " H-Alpha Filter OFF-AXIS

    TO - 14 " H-Alpha Filter OFF-AXIS

    The H-Alpha (Hydrogen-Alpha) filter allows safe observation of the entire solar disc, providing ..

    ...
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    FREE SHIPPING
    (48 States)
    Model#: TO14HAOA
    $999.00

  17. TO - OFF-AXIS Glass Solar Filter TYPE 2+ for Meade 12 " Schmidt-Cassegrain Telescopes

    TO - OFF-AXIS Glass Solar Filter TYPE 2+ for Meade 12 " Schmidt-Cassegrain Telescopes

    Made with high quality hand select glass coated with our exclusive Solar II Plus. The most durable glass filter on the market. Guaranteed fifteen years.

    ...
    Learn More
    Model#: TO13750A
    $129.00

  18. TO - OFF-AXIS Glass Solar Filter TYPE 2+ for Meade Starfinder 10 Telescopes

    TO - OFF-AXIS Glass Solar Filter TYPE 2+ for Meade Starfinder 10 Telescopes

    Made with high quality hand select glass coated with our exclusive Solar II Plus. The most durable glass filter on the market. Guaranteed fifteen years.

    ...
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    Model#: TO13000A
    $109.00

  19. TO - Full Aperture Glass Solar Filter TYPE 2+ for Orion 12.5 " Telescopes

    TO - Full Aperture Glass Solar Filter TYPE 2+ for Orion 12.5 " Telescopes

    Made with high quality hand select glass coated with our exclusive Solar II Plus. The most durable glass filter on the market. Guaranteed fifteen years.

    ...
    Learn More
    Model#: TO12550
    $179.00

  20. TO - LP-1  Broadband (Black Cell)  2"

    TO - LP-1 Broadband (Black Cell) 2"

    Enhanced deep sky viewing with the latest in multi ... Learn More
    Model#: LP1-2
    $149.00

Items 121 to 140 of 899 total

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