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1.25" Filters

Items 41 to 60 of 118 total

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  1. Custom Scientific H-Alpha 656.3/4.5 nm Filter 1.25" Round Mounted

    Custom Scientific - H-Alpha 656.3/4.5 nm Filter - 1.25" Round Mounted

    The Custom Scientific H-Alpha 656.3/4.5 nanometer filter is a great accessory for imaging emission nebulae which emit large amounts of the H-Alpha spectral line at a 4.5 nanometer bandpass due to excited hydrogen atoms.

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    (48 States)
    Model#: CU-HA45NM-125
    $600.00

  2. Custom Scientific Luminance (IR-Blocked Clear) Filter 1.25" Round Mounted

    Custom Scientific - Luminance (IR-Blocked Clear) Filter - 1.25" Round Mounted

    The Custom Scientific Luminance Clear assists in CCD imaging because it preserves the visual spectral wavelengths while suppressing the extra Infrared wavelengths picked up by CCD sensors that the human eye can't detect.

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    Model#: CU-LUM-125
    $95.00

  3. Custom Scientific UBVRI 1.25" Mounted Round Filter Set

    Custom Scientific - UBVRI 1.25" Mounted Round Filter Set

    Custom Scientific UBVRI filters have been used in institutions and observatories around the world such as Kitt Peak, Mauna Kea, and the CTIO/Chile.

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    (48 States)
    Model#: CU-UBVRI125-SET
    $875.00

  4. Vernonscope 1.25" Green Filter 24%

    Vernonscope - 1.25" Green Filter - 24%

    On the surface of the filter, there are numbers that correspond with Kodak Wratten filters and will fit Brandon Oculars and Dakin Barlows by Vernonscope.

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    Model#: VRN114FILT58
    $39.00

  5. Vernonscope 1.25" Light Green Filter - 56%

    Vernonscope - 1.25" Light Green Filter - 56%

    On the surface of the filter, there are numbers that correspond with Kodak Wratten filters and will fit Brandon Oculars and Dakin Barlows by Vernonscope.

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    Model#: VRN114FILT56
    $39.00

  6. Vernonscope 1.25" Violet Filter 1%

    Vernonscope - 1.25" Violet Filter - 1%

    The Vernonscope 1.25" Violet Filter (1%) is designed for increasing contrast when observing Venus and to detect cloud bands on Mars and Jupiter, further enhancing the dark and light colors of a planet's surface.

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    Model#: VRN114FILT47
    $39.00

  7. Astrodon 1.25" dia. Unmounted R Filter

    Astrodon - Photometric UVBRIc - 1.25" Mounted Rc Edge Blackened Filter

    UVBRI filters have been the standard for photometric measurements for decades.  They have evolved over time as technology changed.  H. Johnson in the 1950s and A.W.J. Cousins in the 1970s designed these filters for photomultiplier tubes (PMT).

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    Model#: Rc*-27R
    $200.00

  8. Baader Planetarium - U Filter (Venus and Ultraviolet) - 1.25"

    Baader Planetarium - U Filter (Venus and Ultraviolet) - 1.25"

    Another unique and pioneering filter from Baader Planetarium. For the first time, amateurs can now record cloud structures on Venus. The Baader Venus Filter enables amateurs to successfully image in the deep UV, a spectral region normally inaccessible

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    (48 States)
    Model#: FUV-1
    $274.00

  9. Baader Planetarium Set of 5 Photometric UBVRI Filters 1.25" (4mm Glass Thickness, Optically Polished)
  10. Celestron LRGB Imaging Filter Set

    Celestron - LRGB Imaging Filter Set

    Take color images of the night sky with your Skyris monochrome CCD camera, a simple filter wheel, and this four-piece LRGB filter set!

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    (48 States)
    Model#: 95517
    $279.95

  11. IDAS Hutech Light Pollution Suppression Filter 1.25"

    IDAS - Hutech - Light Pollution Suppression Filter - 1.25"

    This light pollution filter suppresses artificial light emission lines while preserving the emission lines from nebulae, therefore enhancing the view and image.

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    Model#: LPS-D1-28.6
    $179.00

  12. Vernonscope 1.25" Yellow Filter 74%

    Vernonscope - 1.25" Yellow Filter - 74%

    The 1.25" Yellow 74% filter from Vernonscope is excellent for viewing Mars because it furthers the contrast between the light and dark areas of the surface.

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    Model#: VRN114FILT12
    $39.00

  13. Vernonscope 1.25" Deep Yellow Filter - 66%

    Vernonscope - 1.25" Deep Yellow Filter - 66%

    The Vernonscope 1.25" Deep Yellow Filter 66% are great for enhancing the light and dark areas of Mars to view cloud features and surface features. Even the gas giants might show hints of blue cloud features on their surface.

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    Model#: VRN114FILT15
    $39.00

  14. Vernonscope 1.25" Skylight Filter 86% trans

    Vernonscope - 1.25" Skylight Filter - 86% trans

    On the surface of the filter, there are numbers that correspond with Kodak Wratten filters and will fit Brandon Oculars and Dakin Barlows by Vernonscope.

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    Model#: VRN114FILT1A
    $39.00

  15. Vernonscope 1.25" Orange Filter 46%

    Vernonscope - 1.25" Orange Filter - 46%

    The Vernonscope 1.25" Orange Filter 46% are great for enhancing the light and dark areas of Mars to view cloud features and surface features.

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    Model#: VRN114FILT21
    $39.00

  16. Vernonscope 1.25" Light Red Filter - 25%

    Vernonscope - 1.25" Light Red Filter - 25%

    The Vernonscope 1.25" Light Red Filter 25% are great for enhancing the light and dark areas of Mars to view cloud features and surface features.

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    Model#: VRN114FILT23A
    $39.00

  17. Vernonscope 1.25" Red Filter - 14%

    Vernonscope - 1.25" Red Filter - 14%

    The Vernonscope 1.25" Red Filter 14% are great for enhancing the light and dark areas of Mars to view cloud features and surface features.

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    Model#: VRN114FILT25
    $39.00

  18. Vernonscope 1.25" Magenta Filter 58%

    Vernonscope - 1.25" Magenta Filter - 58%

    The Vernonscope 1.25" Magenta Filter 58% are great for enhancing red features and darkening green features in Mars and white features are increased on Jupiter.

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    Model#: VRN114FILT30
    $39.00

  19. MallinCam 1.25" IR Cut Filter

    MallinCam - 1.25" IR Cut Filter

    This IR filter is specifically optimized for MallinCam Video CCD Cameras. ... Learn More
    Model#: OA-03
    $89.99

  20. Astrodon Narrowband - 1.25" Mounted H-a 5 nm Filter

    Astrodon - Narrowband - 1.25" Mounted H-Alpha 5 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, 501 nm), sulfur (SII, 672nm) and others.

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    FREE SHIPPING
    (48 States)
    Model#: HA5-27R
    $330.00

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