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  1. FCB-2

    Baader Planetarium - Contrast Booster 2" Filter

    Much more than a simple minus-violet filter. Based on the popular Baader Moon&Skyglow filter, the Baader Contrast-Booster takes contrast enhancement and skyglow reduction to the maximum level possible from a filter ... Learn More
    Model#: FCB-2
    $117.00

  2. 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% ... Learn More
    Model#: 94119-A
    $15.95

  3. 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
    $99.95

  4. Lumicon - 2"  Ultra High Contrast Filter

    Lumicon - 2" Ultra High Contrast Filter

    The ULTIMATE nebula filter. The original Lumicon 2" Ultra High Contrast Filter is unbeatable for revealing nebulosity ... Learn More
    FREE SHIPPING
    (excludes AK & HI)
    Model#: LF3030
    $199.95

  5. Lumicon - Cassegrain H- Beta Filter

    Lumicon - Cassegrain H- Beta Filter

    Also known as the Horsehead Nebula filter, the Lumicon Cassegrain 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
    FREE SHIPPING
    (excludes AK & HI)
    Model#: LF3065
    $199.95

  6. Lumicon - Filter # 21 Orange 1.25"

    Lumicon - Filter # 21 Orange 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. Double stacking filters may also improve lunar imaging ... Learn More
    Model#: LF1030
    $19.95

  7. Lumicon - Filter # 23A Light Red 1.25"

    Lumicon - Filter # 23A Light Red 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. Double stacking filters may also improve lunar imaging ... Learn More
    Model#: LF1035
    $19.95

  8. Lumicon - Filter # 25 Red 1.25"

    Lumicon - Filter # 25 Red 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. Double stacking filters may also improve lunar imaging ... Learn More
    Model#: LF1040
    $19.95

  9. Lumicon - Filter # 29 Dark Red 1.25"

    Lumicon - Filter # 29 Dark Red 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. Double stacking filters may also improve lunar imaging ... Learn More
    Model#: LF1045
    $19.95

  10. Lumicon - Filter # 38A Dark Blue 1.25"

    Lumicon - Filter # 38A Dark 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. Double stacking filters may also improve lunar imaging ... Learn More
    Model#: LF1050
    $19.95

  11. Lumicon - Filter # 47 Violet 1.25"

    Lumicon - Filter # 47 Violet 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. Double stacking filters may also improve lunar imaging ... Learn More
    Model#: LF1055
    $19.95

  12. Lumicon - Filter # 56 Green 1.25"

    Lumicon - Filter # 56 Green 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. Double stacking filters may also improve lunar imaging ... Learn More
    Model#: LF1060
    $19.95

  13. Lumicon - Filter # 58 Dark Green 1.25"

    Lumicon - Filter # 58 Dark Green 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. Double stacking filters may also improve lunar imaging ... Learn More
    Model#: LF1065
    $19.95

  14. Lumicon - Filter Variable Polarizer 2"

    Lumicon - Filter Variable Polarizer 2"

    The LF2115, 2" Variable Polarizing Filter, is the all-phase lunar filter for large telescopes. Transmittance is continuously variable from about 5% to 35%. Fits 2" eyepieces ... Learn More
    Model#: LF2115
    $49.95

  15. Lumicon - Minus Violet Filter 1.25"

    Lumicon - Minus Violet Filter 1.25"

    Lumicon Minus Violet and Infrared Blocking Filters are used primarily to "bracket" the color-corrected band of refracting telescopes ... Learn More
    Model#: LF3120
    $59.95

  16. Lumicon - Minus Violet Filter 2"

    Lumicon - Minus Violet Filter 2"

    Lumicon Minus Violet and Infrared Blocking Filters are used primarily to "bracket" the color-corrected band of refracting telescopes ... Learn More
    Model#: LF3125
    $79.95

  17. Lumicon - Night Sky H-Alpha Filter  1.25"

    Lumicon - Night Sky H-Alpha Filter 1.25"

    Lumicon's Night Sky Hydrogen-Alpha Filters are long-pass filters with a 50% transition from blocking to passing at about 640nm. At wavelengths longer than 650nm, transmittance is 90% or above ... Learn More
    Model#: LF3085
    $79.95

  18. Lumicon - Night Sky H-Alpha Filter  2"

    Lumicon - Night Sky H-Alpha Filter 2"

    Lumicon's Night Sky Hydrogen-Alpha Filters are long-pass filters with a 50% transition from blocking to passing at about 640nm. At wavelengths longer than 650nm, transmittance is 90% or above ... Learn More
    Model#: LF3090
    $99.95

  19. Orion - Moon Filter 13 percent Transmission 1.25"

    Orion - Moon Filter 13 percent Transmission 1.25"

    Cures Moon-Watching Washout and EyestrainThe 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 ... Learn More
    Model#: 5662
    $19.95

  20. Orion - OIII Nebula Telescope Filter 1.25"

    Orion - OIII Nebula Telescope Filter 1.25"

    1.25in ... Learn More
    Model#: 05581
    $105.95

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