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  1. 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

    Available

    $179.00

  2. 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

    Available

    $89.00

  3. 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

    Available

    $149.00

  4. TO - LP-1  Broadband (Black Cell)  1.25"

    TO - LP-1 Broadband (Black Cell) 1.25"

    The Thousand Oaks Optical product line now includes ... Learn More
    Model#: LP1-1.25

    Available

    $89.00

  5. TeleVue - OIII Bandmate Filter 2"*

    TeleVue - OIII Bandmate Filter 2"*

    This OIII filter particularly enhances planetary nebulae in larger telescopes Narrowband filter for high transmission, with high blocking of unwanted longer wavelengths to yield high-contrast images ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: BFO-0200

    Available

    5% off

    Regular Price: $315.00

    Special Price: $299.25

  6. TeleVue - OIII Bandmate Filter 1.25"*

    TeleVue - OIII Bandmate Filter 1.25"*

    This OIII filter particularly enhances planetary nebulae in larger telescopes Narrowband filter for high transmission, with high blocking of unwanted longer wavelengths to yield high-contrast images ... Learn More
    Model#: BFO-0125

    In Stock

    5% off

    Regular Price: $175.00

    Special Price: $166.25

  7. TeleVue - Bandmate Mars TYPE B Filter*

    TeleVue - Bandmate Mars TYPE B Filter*

    Bandmate™ Mars Type-B FilterThe Bandmate™ Mars Type-B filter is a high efficiency, single band dielectric coating that achieves penetrating views of the Martian surface. The surface appearance is similar to that of the popular #21 filter ... Learn More
    Model#: BMB-0125

    In Stock

    5% off

    Regular Price: $205.00

    Special Price: $194.75

  8. TeleVue - Bandmate Mars TYPE A Filter*

    TeleVue - Bandmate Mars TYPE A Filter*

    Bandmate™ Mars Type-A FilterWe all know you can't have your cake and eat it too, but the Bandmate™ Mars Type-A filter lets you at least have a good taste! The Type-A is a dual band filter with different dielectric coatings on each side of t ... Learn More
    Model#: BMA-0125

    Available

    5% off

    Regular Price: $205.00

    Special Price: $194.75

  9. Stellarvue Moon Filter

    Stellarvue - Moon Filter - 1.25"

    The Stellarvue 1.25" Moon filter is a 20% transmission neutral density filter that provides a totally color neutral but dimmed view of the Moon.  By dimming the incoming light, moon filters allow you to see finer details on the lunar surface. ... Learn More
    Model#: XM

    Available - Typically ships in 1-3 Days

    $12.00

  10. Stellarvue Color Balanced Chromatic Aberration Filter

    Stellarvue - Color Balanced Chromatic Aberration Filter - 1.25"

    The Stellarvue 1.25" XLCR filter is a color correcting filter which will help reduce the violet fringing on the edges of bright objects, like the Moon and bright planets, while observing with a Achromatic or ED refractor. ... Learn More
    Model#: XCLR1

    Available - Typically ships in 1-3 Days

    $79.00

  11. Orion OIII Nebula Telescope Filter 2"

    Orion - OIII Nebula Telescope Filter 2"

    You can't turn up the luminosity on nebulas, but you can crank up the contrast between them and the sky to reveal more of their wondrous detail.

    ...
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    Model#: ORI-05582

    Available

    $139.99

  12. Orion OIII Nebula Telescope Filter 1.25"

    Orion - OIII Nebula Telescope Filter 1.25"

    1.25in ... Learn More
    Model#: ORI-05581

    Available

    $109.99

  13. Orion Moon Filter 13% Transmission 1.25"

    Orion - Moon Filter 13% Transmission 1.25"

    The Moon's disk, even at partial phases, is intensely bright with reflected sunlight. The glare washes out most of the craters, rilles, and other surface details from view

    ...
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    Model#: ORI-05662

    Available

    $19.99

  14. Orion Deluxe Stargazer's 1.25" Eyepiece Filter Set

    Orion - Deluxe Stargazer's 1.25" Eyepiece Filter Set

    ... Learn More
    Model#: ORI-05590

    Available

    $149.00

  15. Orion 2" Hydrogen-Beta Nebula Eyepiece Filter

    Orion - 2" Hydrogen-Beta Nebula Eyepiece Filter

    ... Learn More
    Model#: ORI-05584

    In Stock

    $139.99

  16. Orion 1.25" Sulfur-II Extra-Narrowband Filter

    Orion - 1.25" Sulfur-II Extra-Narrowband Filter

    Now you can capture dramatic Hubble-like CCD images of emission nebulas from the heart of the city or under a full Moon.

    ...
    Learn More
    Model#: ORI-05579

    In Stock

    $139.99

  17. Orion 1.25" Orion Mars Observation Eyepiece Filter

    Orion - 1.25" Orion Mars Observation Eyepiece Filter

    The custom-designed Orion Mars Observation filter enhances contrast of virtually all surface features.

    ...
    Learn More
    Model#: ORI-05599

    Available

    $49.99

  18. Orion 1.25" Luminance/IR Cutoff Astrophotography Filter

    Orion - 1.25" Luminance/IR Cutoff Astrophotography Filter

    ... Learn More
    Model#: ORI-05564

    Available

    $39.99

  19. Orion 1.25" Hydrogen-Beta Eyepiece Filter

    Orion - 1.25" Hydrogen-Beta Eyepiece Filter

    A Hydrogen-Beta telescope filter may be the only way to see the faint and elusive Horsehead, California, and Cocoon Nebulas.

    ...
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    Model#: ORI-05583

    Available

    $109.99

  20. Orion 1.25" H-Alpha Extra-Narrowband Filter

    Orion - 1.25" H-Alpha Extra-Narrowband Filter

    Get Great Nebula Images Under City Lights or a Full Moon with the Orion Hydrogen-Alpha Extra Narrowband Astrophotography Filter!

    ...
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    Model#: ORI-05587

    In Stock

    $169.99

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