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  1. DGM Optics - 1.25" Narrow Pass Band (NPB) Nebula Filter

    DGM Optics - 1.25" Narrow Pass Band (NPB) Nebula Filter

    The NPB is the ONE filter to have if you have just one, and now regarded as the top narrowband  (UHC type) filter in the world. Judged by renown astro-equipment author Phil Harrington as the best of nine leading competitors in the Astronomy Magazine review "Secret Weapons" (August 2005). With the NPB more objects show enhancement, than any other filter in it`s class.

    ...
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    Model#: NPB 1.25
    $75.00

  2. DGM Optics - 1.25" VHT Filter

    DGM Optics - 1.25" VHT Filter

    The VHT is "mid-band" Nebula/LPR filter that is the perfect match for smaller scopes, or binoculars that can use filters. This filter provides a good balance between the NPB and GCE with regards to contrast vs. field background and star brightness.

    ...
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    Model#: VHT 1.25
    $70.00

  3. DGM Optics - 2" CGE Filter

    DGM Optics - 2" CGE Filter

    The GCE takes a different approach to Wideband LPR filters by employing a "Notch" design which excludes all the bad stuff, from 540 - 590 nm, while allowing the rest of the visible spectrum to transmit over 90%.

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    Model#: CGE 2
    $160.00

  4. DGM Optics - 2" HPOIII Filter

    DGM Optics - 2" HPOIII Filter

    The DGM Optics HPOIII is your perfect compliment to the NPB when you need a more aggressive Nebula filter that really shines with larger scopes. This filter has a bandwidth of approx.

    ...
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    Model#: HPOIII 2
    $170.00

  5. DGM Optics - 2" Narrow Pass Band (NPB) Nebula Filter

    DGM Optics - 2" Narrow Pass Band (NPB) Nebula Filter

    The NPB is the ONE filter to have if you have just one, and now regarded as the top narrowband  (UHC type) filter in the world. Judged by renown astro-equipment author Phil Harrington as the best of nine leading competitors in the Astronomy Magazine review "Secret Weapons" (August 2005). With the NPB more objects show enhancement, than any other filter in it`s class.

    ...
    Learn More
    Model#: NPB 2
    $150.00

  6. DGM Optics - 2" VHT Filter

    DGM Optics - 2" VHT Filter

    The VHT is "mid-band" Nebula/LPR filter that is the perfect match for smaller scopes, or binoculars that can use filters. This filter provides a good balance between the NPB and GCE with regards to contrast vs. field background and star brightness.

    ...
    Learn More
    Model#: VHT 2
    $140.00

  7. iOptron - Green Moon Filter

    iOptron - Green Moon Filter

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    Model#: TFE100
    $15.00

  8. 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
    $119.95

  9. 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
    (48 States)
    Model#: LF3030
    $239.95

  10. 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
    (48 States)
    Model#: LF3065
    $239.95

  11. 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
    $23.95

  12. 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
    $23.95

  13. 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
    $23.95

  14. 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
    $23.95

  15. 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
    $23.95

  16. 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
    $23.95

  17. 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
    $23.95

  18. 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
    $23.95

  19. 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
    $59.95

  20. 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
    $71.95

Items 21 to 40 of 64 total

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