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BE AWARE OF ASTRONOMY PLUS WEBSITE COPY. // Free Shipping for orders over 500$* Some exception may apply.
BE AWARE OF ASTRONOMY PLUS WEBSITE COPY. // Free Shipping for orders over 500$* Some exception may apply

Filters

An astronomical filter is a telescope accessory consisting of an optical filter used by amateur astronomers to simply improve details and contrast.
  • Original price $339.00 - Original price $881.00
    Original price
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    $339.00 - $881.00
    Current price $339.00

    Astronomik SII 6nm CCD MaxFR

    Astronomik SII 6nm CCD MaxFR There is an ever growing demand for filters suitable for extremly fast optical systems like Celestron´s RASA the Epsil...

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    Original price $339.00 - Original price $881.00
    Original price
    $339.00 - $881.00
    $339.00 - $881.00
    Current price $339.00
  • Original price $251.00 - Original price $667.00
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    Current price $251.00

    Astronomik SII 6nm CCD Filters

    Astronomik SII 6nm CCD Filters This SII-CCD Filter is suitable for imaging of SII-regions from observation sites with light pollution and from dark...

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    Original price $251.00 - Original price $667.00
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    $251.00 - $667.00
    Current price $251.00
  • Original price $213.00 - Original price $566.00
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    Current price $213.00

    Astronomik SII 12nm CCD MaxFR Filter

    Astronomik SII 12nm CCD MaxFR Filter There is an ever growing demand for filters suitable for extremly fast optical systems like Celestron´s RASA t...

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    Original price $213.00 - Original price $566.00
    Original price
    $213.00 - $566.00
    $213.00 - $566.00
    Current price $213.00
  • Original price $163.00 - Original price $427.00
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    $163.00 - $427.00
    $163.00 - $427.00
    Current price $163.00

    Astronomik SII 12nm CCD Filter

    Astronomik SII 12nm CCD Filter This SII Filter is suitable for imaging of SII-regions from observation sites with light pollution and from dark sit...

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    Original price $163.00 - Original price $427.00
    Original price
    $163.00 - $427.00
    $163.00 - $427.00
    Current price $163.00
  • Original price $339.00 - Original price $881.00
    Original price
    $339.00 - $881.00
    $339.00 - $881.00
    Current price $339.00

    Astronomik H-alpha 6nm CCD MaxFR Filter

    Astronomik H-alpha 6nm CCD MaxFR Filter There is an ever growing demand for filters suitable for extremly fast optical systems like Celestron´s RAS...

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    Original price $339.00 - Original price $881.00
    Original price
    $339.00 - $881.00
    $339.00 - $881.00
    Current price $339.00
  • Original price $251.00 - Original price $667.00
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    $251.00 - $667.00
    Current price $251.00

    Astronomik H-alpha 6nm CCD Filter

    Astronomik H-alpha 6nm CCD Filter   This H-alpha Filter is suitable for imaging of Hydrogen nebulas from observation sites with light pollution and...

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    Original price $251.00 - Original price $667.00
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    $251.00 - $667.00
    Current price $251.00
  • Original price $209.24 - Original price $566.00
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    $209.24 - $566.00
    Current price $209.24

    Astronomik H-alpha 12nm CCD MaxFR Filter

    Astronomik H-alpha 12nm CCD MaxFR Filter There is an ever growing demand for filters suitable for extremly fast optical systems like Celestron´s RA...

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    Original price $209.24 - Original price $566.00
    Original price
    $209.24 - $566.00
    $209.24 - $566.00
    Current price $209.24
  • Original price $163.00 - Original price $427.00
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    $163.00 - $427.00
    $163.00 - $427.00
    Current price $163.00

    Astronomik H-alpha 12nm CCD Filter

    Astronomik H-alpha 12nm CCD Filter The Astronomik H-alpha filter is a narrow band filter for CCD photography. The filter lets the H-alpha light of ...

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    Original price $163.00 - Original price $427.00
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    $163.00 - $427.00
    Current price $163.00
  • Original price $74.00 - Original price $377.00
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    Current price $74.00

    Astronomik L-2 UV-IR Blocking Filter

    Astronomik L-2 UV-IR Blocking Filter Astronomik now offers you a range of three different UV+IR blockers as Luminance filters. The different spectr...

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    Original price $74.00 - Original price $377.00
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    Current price $74.00
  • Original price $95.00 - Original price $377.00
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    Current price $95.00

    Astronomik UHC-E Filter

    Astronomik UHC-E Filter The Astronomik UHC-E filter is our budget filter for deep-sky observation of emission nebulae and comets under light pollut...

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    Original price $95.00 - Original price $377.00
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    Current price $95.00
  • Original price $339.00 - Original price $881.00
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    $339.00 - $881.00
    Current price $339.00

    Astronomik OIII 6nm MaxFR CCD Filter

    Astronomik OIII 6nm MaxFR CCD Filter There is an ever growing demand for filters suitable for extremly fast optical systems like Celestron´s RASA t...

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    Original price $339.00 - Original price $881.00
    Original price
    $339.00 - $881.00
    $339.00 - $881.00
    Current price $339.00
  • Original price $213.00 - Original price $566.00
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    $213.00 - $566.00
    Current price $213.00

    Astronomik OIII 12nm MaxFR CCD Filter

    Astronomik OIII 12nm MaxFR CCD Filter There is an ever growing demand for filters suitable for extremly fast optical systems like Celestron´s RASA ...

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    Original price $213.00 - Original price $566.00
    Original price
    $213.00 - $566.00
    $213.00 - $566.00
    Current price $213.00
  • Original price $163.00 - Original price $427.00
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    $163.00 - $427.00
    $163.00 - $427.00
    Current price $163.00

    Astronomik OIII 12nm CCD Filter

    Astronomik OIII 12nm CCD Filter This Astronomik OIII-CCD Filter is suitable for imaging of OIII nebulas from observation sites with light pollution...

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    Original price $163.00 - Original price $427.00
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    Current price $163.00
  • Original price $120.00 - Original price $251.00
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    Current price $120.00

    Astronomik Red Type 2c Filter

    Astronomik Red Type 2c Filter Our filter set especially designed for astrophotography with CCD cameras. These filters provide a natural color repro...

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    Original price $120.00 - Original price $251.00
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    Current price $120.00
  • Original price $446.00 - Original price $446.00
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    Shelyak 12V/7A Power supply with 4 way cable (SE0133)

    Shelyak 12V/7A Power supply with 4 way cable  12V/7A regulated power supply with a 4-way power cable (two 2.5mm connectors for the calibration mo...

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    Original price $446.00 - Original price $446.00
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  • Original price $50.00 - Original price $50.00
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    Shelyak Argon-neon Spare Bulbs (SE0148)

    Shelyak Argon-neon Spare Bulbs  Bag of 3 spare argon-neon bulbs for Alpy calibration unit, LISA calibration or Lhires III. In the Box Shelyak Argon...

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    Original price $50.00 - Original price $50.00
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  • Original price $17.00 - Original price $17.00
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    Shelyak Bulb for Flats (EL0116)

    Shelyak Bulb for Flats Spare bulb, alone.  In the Box Shelyak Bulb for Flats Manual & Warranty Shelyak 1-Year Warranty

    Original price $17.00 - Original price $17.00
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  • Original price $305.00 - Original price $305.00
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    Shelyak Focal Reducer 0.63x (EL0110)

    Shelyak Focal Reducer 0.63x  This reducer is made of a 3-lenses apo, coated against reflections. Mechanically, it is mounted directly behind a ...

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    Original price $305.00 - Original price $305.00
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  • Original price $58.00 - Original price $58.00
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    Shelyak M42 / EOS Ring (BA0043)

    Shelyak M42 / EOS Ring  M42 x 0.75 thread / EOS ring.It allows to mount a Canon EOS Digital SLR on a LISA or Lhires III spectroscope. In the Box Sh...

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    Original price $58.00 - Original price $58.00
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  • Original price $53.00 - Original price $53.00
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    Shelyak C/CS Adapter (BA0036)

    Shelyak C/CS Adapter  5mm extender to use a C-mount lens on a CS-mount camera..Often used with M42/C ring. In the Box Shelyak C/CS Adapter Manual &...

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    Original price $53.00 - Original price $53.00
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    $53.00
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  • Original price $74.00 - Original price $74.00
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    Shelyak M42 to C Mount adapter (BA0034)

    Shelyak M42 to C Mount adapter It is used with classical CCD camera with M42 thread – such as Atik Titan to connect to Lhires III guiding, LISA gui...

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    Original price $74.00 - Original price $74.00
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  • Original price $119.00 - Original price $119.00
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    Shelyak T-Adapter (BA0027)

    Shelyak T-Adapter Mount your eShel fibre injection system , ALPY 600 or LISA spectrograph on a Schmidt-Cassegrain Telescope (typically with a 0.63x...

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    Original price $119.00 - Original price $119.00
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  • Original price $297.00 - Original price $297.00
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    Current price $297.00

    Shelyak Ring M42 Male to EOS Female (BA0023)

    Shelyak Ring M42 Male to EOS Female Included in eShel spectroscope delivery. To connect acquisition CCD camera in M42 with eShel spectroscope. Tech...

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    Original price $297.00 - Original price $297.00
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  • Original price $69.00 - Original price $69.00
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    Shelyak Adapter M42-31.75 (PU0124)

    Shelyak Adapter M42-31.75  Can also connect a SLR (digital or not) to a Star Analyser. Included in Alpy delivery. Technical Specifications...

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    Original price $69.00 - Original price $69.00
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  • Original price $124.00 - Original price $124.00
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    Shelyak Adapter cord for the SPOX Module (SE0183)

    Shelyak Adapter cord for the SPOX Module  Adapter to connect the SPOX module to the LISA and Alpy 600 spectrographs (To plug to the end of the 0.8m...

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    Original price $124.00 - Original price $124.00
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    $124.00
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    Current price $124.00
  • Original price $104.00 - Original price $124.00
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    Shelyak Main cable for the SPOX Module

    Shelyak Main cable for the SPOX Module Cable to connect the SPOX module to the LHIRES III. Cable including at both ends, a Tiny XLR 4-pin female ...

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    Original price $104.00 - Original price $124.00
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  • Original price $1,388.00 - Original price $1,388.00
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    $1,388.00
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    Current price $1,388.00

    Shelyak Thorium-Argon Bulb (EL0037)

    Shelyak Thorium-Argon Bulb  Spare bulb, alone. Requires a High Voltage power supply with HCL lamp cable. This bulb is included in the eShel calib...

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    Original price $1,388.00 - Original price $1,388.00
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    $1,388.00
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    Current price $1,388.00
  • Original price $693.00 - Original price $957.00
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    Current price $693.00

    Shelyak Calibration Fiber 200µm

    Shelyak Calibration Fiber 200µm Calibration optical fiber (core diameter: 200µm) for eShel optical fiber spectroscope and in particular for the spe...

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    Original price $693.00 - Original price $957.00
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    Current price $693.00
  • Original price $297.00 - Original price $668.00
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    Current price $297.00

    Shelyak Object fiber 50µm

    Shelyak Object fiber 50µm  Object optical fiber (core diameter: 50µm) for eShel optical fiber spectroscope and in particular spectrocope eShel. Lin...

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    Original price $297.00 - Original price $668.00
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    Current price $297.00
  • Original price $901.00 - Original price $901.00
    Original price
    $901.00
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    Current price $901.00

    Shelyak ESHEL Collimator module upgrade kit (SE0220)

    Shelyak ESHEL Collimator module upgrade kit To extend the range of the spectral domain achievable to the Hδ line (4101Å). This upgrade kit for th...

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    Original price $901.00 - Original price $901.00
    Original price
    $901.00
    $901.00 - $901.00
    Current price $901.00
  • Original price $244.00 - Original price $244.00
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    Current price $244.00

    Shelyak Filter kit 530 nm for UVEX (SE0248)

    Shelyak Order filter kit 530 nm for UVEX  530 nm order filter kit for UVEX Order filter for UVEX intended to remove second order  from the spectrum...

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    Original price $244.00 - Original price $244.00
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    Current price $244.00
  • Original price $474.00 - Original price $474.00
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    $474.00
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    Current price $474.00

    Shelyak High Performance Slit 23µm (SE0247)

    Shelyak High Performance Slit 23µm  High performance 23µm slit compatible with ALPY 600 and UVEX spectrographs This 23µm “high performance” slit ...

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    Original price $474.00 - Original price $474.00
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    $474.00
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    Current price $474.00
  • Original price $289.00 - Original price $289.00
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    $289.00
    $289.00 - $289.00
    Current price $289.00

    Shelyak Photometric Slit for Lisa & LHIRES III (SE0194)

    Shelyak Photometric Slit for Lisa & LHIRES III Set of additional slits for LISA or Lhires III spectroscopes with four “dual slits” specially de...

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    Original price $289.00 - Original price $289.00
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    $289.00
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    Current price $289.00
  • Original price $322.00 - Original price $322.00
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    $322.00
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    Current price $322.00

    Shelyak Slit set for LISA & LHIRES III (SE0122)

    Shelyak Slit set for LISA & LHIRES III   Set (19/50/75/100 µm) of wide slits for LISA or Lhires III spectroscopes. To be combined with slit hol...

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    Original price $322.00 - Original price $322.00
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    $322.00
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    Current price $322.00
  • Original price $297.00 - Original price $297.00
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    $297.00
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    Current price $297.00

    Shelyak Standard Slit for LHIRES III / LISA (SE0116)

    Shelyak Standard Slit for LHIRES III / LISA  Standard slits set included in Lhires III and LISA spectroscopes.With an additional set, you can make ...

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    Original price $297.00 - Original price $297.00
    Original price
    $297.00
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    Current price $297.00
  • Original price $153.00 - Original price $162.00
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    Current price $153.00

    Shelyak Backfocus for LHIRES III and LISA Spectroscope

    Shelyak Backfocus for LHIRES III and LISA Spectroscope Adapter to mount a CCD acquisition camera with backfocus on a LHIRE III or a LISA spectrosco...

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    Original price $153.00 - Original price $162.00
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    $153.00 - $162.00
    $153.00 - $162.00
    Current price $153.00
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