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1.25" Filters

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  1. Lumicon - 1.25" Hydrogen - Beta Filter

    Lumicon - 1.25" Hydrogen - Beta Filter

    Also known as the Horsehead Nebula filter, the Lumicon 1.25in Hydrogen-Beta Filter isolates only the hydrogen-beta line of the spectrum (486nm) in a narrow pass-band just 9 nm wide, providing maximum contrast ... Learn More
    Model#: LF3055

    In Stock

    $149.95

  2. Lumicon - 1.25" Comet Filter

    Lumicon - 1.25" Comet Filter

    The Lumicon 1.25" Comet Filter, a narrow band-pass filter (25nm), isolates the 501nm OIII line and both C2 lines at 511nm and 514nm.

    ...
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    Model#: LF3070

    In Stock

    $149.95

  3. Lumicon - Filter Single Polarizer 1.25"

    Lumicon - Filter Single Polarizer 1.25"

    The LF1110, 1.25" Polarizing Filter, is the best all-purpose lunar and planetary filter.

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    Model#: LF1110

    Available

    $44.95

  4. Lumicon - Filter Variable Polarizer 1.25"

    Lumicon - Filter Variable Polarizer 1.25"

    The LF1115, 1.25" Variable Polarizing Filter, is the all-phase lunar filter for large telescopes. Transmittance is continuously variable from 5% to 35%.

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    Model#: LF1115

    In Stock

    $64.95

  5. Lumicon - 1.25" Deep Sky Filter

    Lumicon - 1.25" Deep Sky Filter

    The 1.25in Deep Sky is Lumicon's most popular nebula filter. It blocks all high & low pressure mercury and sodium vapor lamp light, neon lights and airglow, while transmitting the rest of the visible spectrum.

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    Model#: LF3010

    Available

    $149.95

  6. Lumicon - 1.25"  Ultra High Contrast Filter

    Lumicon - 1.25" Ultra High Contrast Filter

    The ULTIMATE nebula filter. The original Lumicon 1.25in Ultra High Contrast Filter is unbeatable for revealing nebulosity. ... Learn More
    Model#: LF3025

    Available

    $149.95

  7. Lumicon - Filter # 82A Light Blue 1.25"

    Lumicon - Filter # 82A Light Blue 1.25"

    Each filter is individually precision ground and highly polished with ultra-high light transmittance coatings on both sides for ultimate contrast on lunar and planetary detail

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    Model#: LF1075

    In Stock

    $34.95

  8. Lumicon - Filter Neutral Density 50 1.25"

    Lumicon - Filter Neutral Density 50 1.25"

    The LF1090, 1.25" Neutral Density 50 Filter (ND50), transmits 50% of all incident light, while blocking 50%.

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    Model#: LF1090

    Available

    $29.95

  9. 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

  10. Orion OIII Nebula Telescope Filter 1.25"

    Orion - OIII Nebula Telescope Filter 1.25"

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

    Available

    $109.99

  11. 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

  12. 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

  13. 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

  14. 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

  15. 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

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

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

    ... Learn More
    Model#: LP3-1.25

    Available

    $89.00

  17. 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

    Available

    $89.00

  18. Astrodon Photometric Sloan 1.25" Mounted Gen2 u' Edge-Blackened Filter

    Astrodon - Photometric Sloan - 1.25" Mounted Gen2 u' Edge-Blackened Filter

    NEW!  Astrodon introduces Generation 2 Sloan filters based upon ongoing input from research organizations.  The changes include

    ...
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    Model#: U'2-27R

    Available

    $200.00

  19. Astrodon Photometric Sloan 1.25" Mounted Gen2 g' Edge Blackened Filter

    Astrodon - Photometric Sloan - 1.25" Mounted Gen2 g' Edge Blackened Filter

    NEW!  Astrodon introduces Generation 2 Sloan filters based upon ongoing input from research organizations.  The changes include

    ...
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    Model#: G'2-27R

    In Stock

    $200.00

  20. Astrodon Photometric Sloan 1.25" Mounted Gen2 g' Edge Blackened Filter

    Astrodon - Photometric Sloan - 1.25" Mounted Gen2 r' Edge Blackened Filter

    NEW!  Astrodon introduces Generation 2 Sloan filters based upon ongoing input from research organizations.  The changes include

    ...
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    Model#: R'2-27R

    In Stock

    $200.00

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