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  1. Dew Control (9)
  2. Dew Heaters (8)
  3. Dew Heater Controllers (1)
  4. Filters (63)
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  1. $0.00 - $100.00 (30)
  2. $100.00 - $200.00 (26)
  3. $200.00 - $500.00 (1)
  4. $500.00 - $1,000.00 (14)
  5. $1,000.00 - $2,000.00 (1)
Product Series
  1. TO Broadband Nebular Filters (2)
  2. TO Full Aperture Glass Solar Filter TYPE 2plus Filters (25)
  3. TO H-Alpha Filter CENTER-AXIS Filters (7)
  4. TO H-Alpha Filter OFF-AXIS Filters (8)
  5. TO H-Beta Nebular Filters (2)
  6. TO Heater Bands (8)
  7. TO Narrowband Nebular Filters (2)
  8. TO OFF-AXIS Glass Solar Filter TYPE 2plus Filters (15)
  9. TO Oxygen III Filters (2)
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Astronomy Galleries

Thousand Oaks Optical

Items 1 to 20 of 72 total

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  1. TO - 11 - 12.5 " H-Alpha Filter CENTER-AXIS

    TO - 11 - 12.5 " H-Alpha Filter CENTER-AXIS

    The H-Alpha (Hydrogen-Alpha) filter allows safe observation of the entire solar disc, providing ... ... Learn More
    FREE SHIPPING
    (excludes AK & HI)
    Model#: TO11-12.5HACA
    $969.00

  2. TO - 11 - 12.5 " H-Alpha Filter OFF-AXIS

    TO - 11 - 12.5 " H-Alpha Filter OFF-AXIS

    The H-Alpha (Hydrogen-Alpha) filter allows safe observation of the entire solar disc, providing... ... Learn More
    FREE SHIPPING
    (excludes AK & HI)
    Model#: TO11-12.5HAOA
    $929.00

  3. 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 .. ... Learn More
    FREE SHIPPING
    (excludes AK & HI)
    Model#: TO14HAOA
    $999.00

  4. 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
    (excludes AK & HI)
    Model#: TO16HAOA
    $1,059.00

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

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

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

  6. TO - 3.5 - 4 " H-Alpha Filter CENTER-AXIS

    TO - 3.5 - 4 " H-Alpha Filter CENTER-AXIS

    The H-Alpha (Hydrogen-Alpha) filter allows safe observation of the entire solar disc, providing superb views .... ... Learn More
    FREE SHIPPING
    (excludes AK & HI)
    Model#: TO3.5-4HACA
    $799.00

  7. TO - 3.5 - 4 " H-Alpha Filter OFF-AXIS

    TO - 3.5 - 4 " H-Alpha Filter OFF-AXIS

    .The H-Alpha (Hydrogen-Alpha) filter allows safe observation of the entire solar disc, providing .. ... Learn More
    FREE SHIPPING
    (excludes AK & HI)
    Model#: TO3.5-4HAOA
    $759.00

  8. TO - 4.5 - 5 " H-Alpha Filter CENTER-AXIS

    TO - 4.5 - 5 " H-Alpha Filter CENTER-AXIS

    The H-Alpha (Hydrogen-Alpha) filter allows safe observation of the entire solar disc, providing .... ... Learn More
    FREE SHIPPING
    (excludes AK & HI)
    Model#: TO4.5-5HACA
    $819.00

  9. TO - 4.5 - 5 " H-Alpha Filter OFF-AXIS

    TO - 4.5 - 5 " H-Alpha Filter OFF-AXIS

    The H-Alpha (Hydrogen-Alpha) filter allows safe observation of the entire solar disc, providing ... ... Learn More
    FREE SHIPPING
    (excludes AK & HI)
    Model#: TO4.5-5HAOA
    $799.00

  10. TO - 6 " H-Alpha Filter CENTER-AXIS

    TO - 6 " H-Alpha Filter CENTER-AXIS

    The H-Alpha (Hydrogen-Alpha) filter allows safe observation of the entire solar disc, providing .... ... Learn More
    FREE SHIPPING
    (excludes AK & HI)
    Model#: TO6HACA
    $839.00

  11. TO - 6 " H-Alpha Filter OFF-AXIS

    TO - 6 " H-Alpha Filter OFF-AXIS

    ..The H-Alpha (Hydrogen-Alpha) filter allows safe observation of the entire solar disc, providing . ... Learn More
    FREE SHIPPING
    (excludes AK & HI)
    Model#: TO6HAOA
    $819.00

  12. TO - 7 - 8 " H-Alpha Filter CENTER-AXIS

    TO - 7 - 8 " H-Alpha Filter CENTER-AXIS

    .The H-Alpha (Hydrogen-Alpha) filter allows safe observation of the entire solar disc, providing ... ... Learn More
    FREE SHIPPING
    (excludes AK & HI)
    Model#: TO7-8HACA
    $899.00

  13. TO - 7 - 8 " H-Alpha Filter OFF-AXIS

    TO - 7 - 8 " H-Alpha Filter OFF-AXIS

    The H-Alpha (Hydrogen-Alpha) filter allows safe observation of the entire solar disc, providing ... ... Learn More
    FREE SHIPPING
    (excludes AK & HI)
    Model#: TO7-8HAOA
    $839.00

  14. TO - 9 - 10 " H-Alpha Filter CENTER-AXIS

    TO - 9 - 10 " H-Alpha Filter CENTER-AXIS

    The H-Alpha (Hydrogen-Alpha) filter allows safe observation of the entire solar disc, providing .... ... Learn More
    FREE SHIPPING
    (excludes AK & HI)
    Model#: TO9-10HACA
    $929.00

  15. TO - 9 - 10 " H-Alpha Filter OFF-AXIS

    TO - 9 - 10 " H-Alpha Filter OFF-AXIS

    .The H-Alpha (Hydrogen-Alpha) filter allows safe observation of the entire solar disc, providing .. ... Learn More
    FREE SHIPPING
    (excludes AK & HI)
    Model#: TO9-10HAOA
    $899.00

  16. TO - Digital Dew Heater Control Unit

    TO - Digital Dew Heater Control Unit

    FOUR CHANNEL:Each heater output is controlled independently and has a full range of adjustment from 0-100%. This eliminates the problem of overheating or not reaching desired temperature regardless of heater size and combination ... Learn More
    Model#: DDHC
    $109.00

  17. TO - Full Aperture Glass Solar Filter TYPE 2+ for Celestron 8 " Newtonians and Orion Sky Watcher 8 "

    TO - Full Aperture Glass Solar Filter TYPE 2+ for Celestron 8 " Newtonians and Orion Sky Watcher 8 "

    Thousand Oaks Optical TYPE 2 + Full Aperture White Light Solar Filters made with high quality, hand select glass, and coated ... ... Learn More
    Model#: TO9500
    $129.00

  18. TO - Full Aperture Glass Solar Filter TYPE 2+ for Celestron 8 " Schmidt-Cassegrains and Meade 8 " Schmidt-Cassegrain

    TO - Full Aperture Glass Solar Filter TYPE 2+ for Celestron 8 " Schmidt-Cassegrains and Meade 8 " Schmidt-Cassegrain

    Thousand Oaks Optical TYPE 2 + Full Aperture White Light Solar Filters made with high quality, hand select glass, and coated ... ... Learn More
    Model#: TO9187
    $129.00

  19. TO - Full Aperture Glass Solar Filter TYPE 2+ for Celestron C-150CR, Celestron C-150HD, Meade 5 " APO, Orion Sky Watcher 6 " and Takahashi FS-128

    TO - Full Aperture Glass Solar Filter TYPE 2+ for Celestron C-150CR, Celestron C-150HD, Meade 5 " APO, Orion Sky Watcher 6 " and Takahashi FS-128

    Thousand Oaks Optical TYPE 2 + Full Aperture White Light Solar Filters made with high quality, hand select glass, and coated ... ... Learn More
    Model#: TO7125
    $109.00

  20. TO - Full Aperture Glass Solar Filter TYPE 2+ for Celestron C-6, Meade LXD-55 SN-6 and Vixen 150

    TO - Full Aperture Glass Solar Filter TYPE 2+ for Celestron C-6, Meade LXD-55 SN-6 and Vixen 150

    Thousand Oaks Optical TYPE 2 + Full Aperture White Light Solar Filters made with high quality, hand select glass, and coated ... ... Learn More
    Model#: TO7500
    $109.00

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Manufacturer of SAFE solar filters for over 30 years. Used by NASA aboard the Space Shuttle. Other professional users include: ABC, BBC CBS, NBC, CNN, NOVA, The Discovery Channel, National Geographic and most major universities and observatories throughout the world. We use the latest technology for manufacturing and developing new products. Tens of thousands of our solar filters and millions of our eclipse viewers are in use world wide.

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