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

Welcome!

Filters

Items 1 to 20 of 998 total

per page
Page:
  1. 1

Set Descending Direction
  1.  Astronomik - Dark Filter - 1.25"

    Astronomik - Dark Filter - 1.25"

    Do you have a CCD camera without a mechanical shutter and would like to do dark frames without continually monitoring your equipment?

    ...
    Learn More
    Model#: DARK-1
    $39.95

  2. APM - Herschelwedge / Solarprism 1.25 "

    APM - Herschelwedge / Solarprism 1.25 "

    Herschelwedges/Solarprisms designed by APM Telescopes for high resolution photo-visuel work with refractors and shiefspieglers.Warning: Never use the Herschelwedge in Catadioptric Telescopes like Schmidt Cassegrain or Maksutov Cassegrain ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: 10013
    $220.00

  3. Astro Optic 1.25" CLS Filter

    Astro Optic - 1.25" CLS Filter

    Light pollution CLS Filters are designed to minimize the affects of light pollution by removing common nanometers and wavelengths found in artificial street lights in the city.

    ...
    Learn More
    Model#: Q1-CLS125-01

    Regular Price: $103.99

    Special Price: $79.95

  4. Astro Optic 1.25" O-III Filter

    Astro Optic - 1.25" O-III Filter

    Oxygen III or OIII filters are mainly designed for viewing planetary nebulae that normally have extremely narrow pass bands in the oxygen spectral lines

    ...
    Learn More
    Model#: Q1-OIII125-01

    Regular Price: $102.99

    Special Price: $79.99

  5. Astro Optic 1.25" UHC Filter

    Astro Optic - 1.25" UHC Filter

    The UHC, otherwise known as the Ultra High Contrast Filter is designed for viewing nebulae under a dark sky by filtering out certain wavelengths

    ...
    Learn More
    Model#: Q1-UHC125-01

    Regular Price: $103.99

    Special Price: $79.99

  6. Astro Optic - 2" CLS Filter

    Astro Optic - 2" CLS Filter

    Light pollution CLS Filters are designed to minimize the affects of light pollution by removing common nanometers and wavelengths found in artificial street lights in the city.

    ...
    Learn More
    Model#: Q1-CLS2-01

    Regular Price: $116.99

    Special Price: $89.95

  7. Astro Optic 2" O-III Filter

    Astro Optic - 2" O-III Filter

    Oxygen III or OIII filters are mainly designed for viewing planetary nebulae that normally have extremely narrow pass bands in the oxygen spectral lines

    ...
    Learn More
    Model#: Q1-OIII2-01

    Regular Price: $115.99

    Special Price: $89.99

  8. Astro Optic 2" UHC Filter

    Astro Optic - 2" UHC Filter

    The UHC, otherwise known as the Ultra High Contrast Filter is designed for viewing nebulae under a dark sky by filtering out certain wavelengths

    ...
    Learn More
    Model#: Q1-UHC2-01

    Regular Price: $116.99

    Special Price: $89.99

  9. Astrodon - 1.25 " Mounted I Filter

    Astrodon - 1.25 " Mounted I Filter

    Astrodon Photometrics - Sloan FiltersThe Sloan Digital Sky Survey (SDSS) filters were  designed by Fukugita et al. (Ast. J., 411/4, April 1996, p ... Learn More
    Model#: i-27R
    $150.00

  10. 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

  11. Astrodon - 1.25" Gen 2 Parfocal UV Blocked Clear Filter

    Astrodon - 1.25" Gen 2 Parfocal UV Blocked Clear Filter

    Astrodon's new improvements of photometric Sloan filters generation 2 feature excellent out of band clocking and other edge-blackended compounds to reduce stray light reflections to assist in CCD imaging.

    ...
    Learn More
    Model#: C2-27R_gen2
    $140.00

  12. Astrodon - 1.25" Mounted Astrodon Gen2 I-Series LRGB Filters (set of 4)

    Astrodon - 1.25" Mounted Astrodon Gen2 I-Series LRGB Filters (set of 4)

    TRU-BALANCE FILTERSSIMPLIFY YOUR IMAGINGGreat Filters Just Got Better - Generation 2 Now Shipping!        Astrodon Tru-Balance RGB filters have revolutionized CCD imaging ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: LRGB2-I27R
    $475.00

  13. Astrodon - 1.25" Mounted CLEAR Filter

    Astrodon - 1.25" Mounted CLEAR Filter

    TRU-BALANCE FILTERSSIMPLIFY YOUR IMAGINGGreat Filters Just Got Better - Generation 2 Now Shipping! Clear optical windows. Pass all frequency of light to the detector.IF your optical system is well color corrected ... Learn More
    Model#: C2-27
    $140.00

  14. Astrodon 1.25" Mounted Clear Filter (UV-Blocked, No NIR Blocking)

    Astrodon - 1.25" Mounted Clear Filter (UV-Blocked, No NIR Blocking)

    Clear optical windows Pass all frequency of light to the detector.

    ...
    Learn More
    Model#: C2-27R
    $150.00

  15. Astrodon 1.25" ExoPlanet-BB Filter

    Astrodon - 1.25" Mounted ExoPlanet-BB Filter

    Astrodon introduces the ExoPlanet-BB filter for use in amateur-scale telescopes to measure light curves of exoplanets.

    ...
    Learn More
    Model#: XOPBB-27R
    $185.00

  16. Astrodon Tru-Balance E-Series 1.25" Mounted LRGB Filters

    Astrodon - 1.25" Mounted Gen2 E-Series LRGB Filters (set of 4)

    Astrodon Tru-Balance RGB filters have revolutionized CCD imaging. Their popularity is due to ease-of-use, high optical throughput and great resulting color for galaxies, star clusters and nebulae.

    ...
    Learn More
    FREE SHIPPING
    (48 States)
    Model#: LRGB2-E27R
    $475.00

  17. FL1-AD-xx3

    Astrodon - 1.25" Narrowband filter 3 nm FWHM

    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.

    ...
    Learn More
    FREE SHIPPING
    (48 States)
    Model#: FL1-AD-xx3
    $395.00

  18. Astrodon - 1.25" Narrowband filter 5 nm FWHM

    Astrodon - 1.25" Narrowband filter 5 nm FWHM

    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.

    ...
    Learn More
    FREE SHIPPING
    (48 States)
    Model#: FL1-AD-xx5
    $275.00

  19. Astrodon - 31mm LRGB E-Series Filters

    Astrodon - 31mm LRGB E-Series Filters

    Astrodon is also providing its latest Generation 2 E-Series 1.25" filters mounted in 31 mm inserts specifically for the popular QSI CCD cameras, such as the QSI532 and QSI583.  

    ...
    Learn More
    FREE SHIPPING
    (48 States)
    Model#: FL3-AD-LRGBE
    $450.00

  20. FL3-AD-LRGBI

    Astrodon - 31mm LRGB I-Series Filters

    Astrodon Tru-Balance RGB filters have revolutionized CCD imaging. Their popularity is due to ease-of-use, high optical throughput and great resulting color for galaxies, star clusters and nebulae.

    ...
    Learn More
    FREE SHIPPING
    (48 States)
    Model#: FL3-AD-LRGBI
    $450.00

Items 1 to 20 of 998 total

per page
Page:
  1. 1

Set Descending Direction