Happily Serving You in the Same Location for Over 58 Years!

Welcome!

Filters by Size

Items 41 to 60 of 341 total

per page
Page:
  1. 3

Set Descending Direction
  1. Chroma filters

    Chroma Technology - Ha/8-65mm x 65mm Diameter Filter - Square

    Extremely durable coatings withstand humidity changes, extreme temperature fluxes and remain spectrally accurate in CWL and band pass adherence.

    ...
    Learn More
    FREE SHIPPING
    (48 States)
    Model#: Ha/8-65S
    $915.00

  2. Levenhuk - 1.25" Optical Filter #58 (Green)

    Levenhuk - 1.25" Optical Filter #58 (Green)

    Levenhuk 1.25" Optical Filter #58 (Green) has a barrel diameter of 1.25" and transmits up to 24% of visible light. With this filter, you can study the minutest details of celestial objects—such as ... Learn More
    Model#: 28087
    $19.95

  3. Levenhuk - 2" Ra H-Beta Filter

    Levenhuk - 2" Ra H-Beta Filter

    Levenhuk Ra H-Beta 2'' filter is used for observations of deep-sky objects, such as emission nebulae (H II) and others.

    ...
    Learn More
    Model#: 35438
    $119.95

  4. Vixen - Moon Filter 1.25"

    Vixen - Moon Filter 1.25"

    While looking at the reflect light off the Moon can not physically harm the observer, the intensity can be very bright. By adding this filter into the optical path, the observer can relax and enjoy the many fascinating features found on our Moon.

    ...
    Learn More
    Model#: 3702
    $35.95

  5. Astrodon - Narrowband - 36mm Unmounted H-Alpha 3 nm Filter

    Astrodon - Narrowband - 36mm Unmounted H-Alpha 3 nm Filter

    Narrowband (NB) filters  enhance contrast of emission objects by accepting only a narrow range of wavelengths around the emission lines of hydrogen (H-a, 656 nm), oxygen (OIII),

    ...
    Learn More
    FREE SHIPPING
    (48 States)
    Model#: HA3-36R
    $650.00

  6. Astrodon - Photometric Sloan - 50mm Unmounted Gen2 g' Edge Blackened Square Filter

    Astrodon - Photometric Sloan - 50mm Unmounted Gen2 g' Edge Blackened Square Filter

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

    ...
    Learn More
    FREE SHIPPING
    (48 States)
    Model#: g'2-50S
    $440.00

  7. 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.

    ...
    Learn More
    Model#: VHT 1.25
    $70.00

  8. iOptron - Green Moon Filter

    iOptron - Green Moon Filter

    A moon filter reduces irradiation, glare, and excess image brightness in lunar observing. It also improves the contrast between lunar albedo features.

    ...
    Learn More
    Model#: TFE100
    $14.00

  9. Astronomik - CLS Light Pollution Filter - 31mm Round Unmounted

    Astronomik - CLS Light Pollution Filter - 31mm Round Unmounted

    The Astronomik CLS is an excellent filter for black & white and color imaging of nebulae, galaxies and star clusters with astronomical instruments of any size.

    ...
    Learn More
    Model#: CLS-31
    $99.95

  10. Astronomik - CLS Light Pollution Filter - 36mm Round Unmounted

    Astronomik - CLS Light Pollution Filter - 36mm Round Unmounted

    The Astronomik CLS is a budget filter for visual observation, Black & White photography and CCD photographs of nebulae, galaxies and star clusters with astronomical instruments of any size.

    ...
    Learn More
    Model#: CLS-36R
    $129.95

  11. Astronomik - CLS CCD Light Pollution Filter - 31mm Round Unmounted

    Astronomik - CLS CCD Light Pollution Filter - 31mm Round Unmounted

    The Astronomik CLS CCD is suitable under light-polluted skies for DSLR Cameras, which have been remodeled for astronomical use.

    ...
    Learn More
    Model#: CLSCCD-31
    $124.95

  12. Astronomik - CLS CCD Light Pollution Filter - 36mm Round Unmounted

    Astronomik - CLS CCD Light Pollution Filter - 36mm Round Unmounted

    The Astronomik CLS CCD is suitable under light-polluted skies for DSLR Cameras, which have been remodeled for astronomical use.

    ...
    Learn More
    Model#: CLSCCD-36
    $159.95

  13. Astrodon - 1.25" Gen 2 Mounted Y Filter

    Astrodon - 1.25" Gen 2 Mounted Y Filter

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

    ...
    Learn More
    Model#: Y2-27R
    $200.00

  14. Astrodon - Photometric Sloan - 1.25" Mounted Gen2 z_s Edge Blackened Filter

    Astrodon - Photometric Sloan - 1.25" Mounted Gen2 z_s Edge Blackened Filter

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

    ...
    Learn More
    Model#: z_s2-27R
    $200.00

  15. Astrodon Photometric Sloan 50mm Unmounted Gen2 z' Edge Blackened Filter

    Astrodon - Photometric Sloan - 50mm Unmounted Gen2 z' Edge Blackened Filter

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

    ...
    Learn More
    FREE SHIPPING
    (48 States)
    Model#: z'2-50R
    $400.00

  16. 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

    ...
    Learn More
    Model#: u'2-27R
    $200.00

  17. 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

    ...
    Learn More
    Model#: g'2-27R
    $200.00

  18. Astrodon Photometric Sloan 50mm Unmounted Gen2 g' Edge Blackened Filter

    Astrodon - Photometric Sloan - 50mm Unmounted Gen2 g' Edge Blackened Filter

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

    ...
    Learn More
    FREE SHIPPING
    (48 States)
    Model#: g'2-50R
    $400.00

  19. 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

    ...
    Learn More
    Model#: r'2-27R
    $200.00

  20. Astrodon Photometric Sloan 50mm Unmounted Gen2 r' Edge Blackened Filter

    Astrodon - Photometric Sloan - 50mm Unmounted Gen2 r' Edge Blackened Filter

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

    ...
    Learn More
    FREE SHIPPING
    (48 States)
    Model#: r'2-50R
    $400.00

Items 41 to 60 of 341 total

per page
Page:
  1. 3

Set Descending Direction