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Exceptionally closed to the public to fulfill orders Tuesday to Thursday, until the end of March. OPEN FOR PICKUP ONLY TUESDAY TO SATURDAY. It may take more time than usual to fulfill orders due to eclipse orders.
Exceptionally closed to the public to fulfill orders Tuesday to Thursday, until the end of March. OPEN FOR PICKUP ONLY TUESDAY TO SATURDAY. It may take more time than usual to fulfill orders due to eclipse orders.

Optolong

Filters

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  • Original price $32.00 - Original price $41.00
    Original price
    $32.00 - $41.00
    $32.00 - $41.00
    Current price $32.00

    Optolong Clear Focusing Filter

    Optolong Clear Focusing Filter Optolong Clear focusing filter is designed to highly pass the visible spectral region 420-680nm at 98.5% transmissio...

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    Original price $32.00 - Original price $41.00
    Original price
    $32.00 - $41.00
    $32.00 - $41.00
    Current price $32.00
  • Original price $220.00 - Original price $273.00
    Original price
    $220.00 - $273.00
    $220.00 - $273.00
    Current price $220.00

    Optolong Clear Sky Filter Screw on Lens

    Optolong Clear Sky Filter Screw on Lens 1. Optolong Clear Sky Filter Introduction A screw on filter with the easiest installation way like UV fi...

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    Original price $220.00 - Original price $273.00
    Original price
    $220.00 - $273.00
    $220.00 - $273.00
    Current price $220.00
  • Original price $70.00 - Original price $110.00
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    $70.00 - $110.00
    $70.00 - $110.00
    Current price $70.00

    Optolong CLS(City Light Suppression) Broadband Filter

    Optolong CLS (City Light Suppression) Broadband Filter 1.  Optolong CLS Introduction The CLS (City Light Suppression) broadband filter is designed ...

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    Original price $70.00 - Original price $110.00
    Original price
    $70.00 - $110.00
    $70.00 - $110.00
    Current price $70.00
  • Original price $122.00 - Original price $205.00
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    $122.00 - $205.00
    $122.00 - $205.00
    Current price $122.00

    Optolong CLS-CCD(City Light Suppression) Broadband Filter

    Optolong CLS CCD (City Light Suppression) Broadband Filter The CLS (City Light Suppression) broadband filter is designed to improve the visibility ...

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    Original price $122.00 - Original price $205.00
    Original price
    $122.00 - $205.00
    $122.00 - $205.00
    Current price $122.00
  • Original price $215.00 - Original price $309.00
    Original price
    $215.00 - $309.00
    $215.00 - $309.00
    Current price $215.00

    Optolong H-Alpha 7nm Narrowband Filter

    Optolong H-Alpha 7nm Narrowband Filter Optolong improved version of H-Alpha 7nm filter is the popular narrowband filter allowing 7nm bandwidth of l...

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    Original price $215.00 - Original price $309.00
    Original price
    $215.00 - $309.00
    $215.00 - $309.00
    Current price $215.00
  • Original price $600.00 - Original price $940.00
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    $600.00 - $940.00
    $600.00 - $940.00
    Current price $600.00

    Optolong Improved NB Filters SHO 6.5nm Narrowband Filter Kit

    Optolong NB Filters SHO 6.5nm Narrowband Filter Kit Optolong SHO6.5nm filter kit includes SII6.5nm, H-Alpha7nm, and OIII6.5nm narrow-band filters, ...

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    Original price $600.00 - Original price $940.00
    Original price
    $600.00 - $940.00
    $600.00 - $940.00
    Current price $600.00
  • Original price $215.00 - Original price $309.00
    Original price
    $215.00 - $309.00
    $215.00 - $309.00
    Current price $215.00

    Optolong Improved OIII 6.5nm Narrowband Filter

    Optolong Improved OIII 6.5nm Narrowband Filter Optolong improved extra Narrowband OIII-CCD 6.5nm filter is designed for nebula observation allowing...

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    Original price $215.00 - Original price $309.00
    Original price
    $215.00 - $309.00
    $215.00 - $309.00
    Current price $215.00
  • Original price $100.00 - Original price $155.00
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    $100.00 - $155.00
    $100.00 - $155.00
    Current price $100.00

    Optolong IR Pass685 Planetary Filter

    Optolong IR Pass685 Planetary Filter Optolong IR Pass 685nm filter is designed to block wavelengths below 670nm and can be used in IR-LRGB imaging ...

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    Original price $100.00 - Original price $155.00
    Original price
    $100.00 - $155.00
    $100.00 - $155.00
    Current price $100.00
  • Original price $240.00 - Original price $350.00
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    $240.00 - $350.00
    $240.00 - $350.00
    Current price $240.00

    Optolong L-eNhance Filter

    Optolong L-eNhance Filter The relentless spread or urbanization and its associated light pollution have become a growing problem for all amateur as...

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    Original price $240.00 - Original price $350.00
    Original price
    $240.00 - $350.00
    $240.00 - $350.00
    Current price $240.00
  • Original price $319.00 - Original price $410.00
    Original price
    $319.00 - $410.00
    $319.00 - $410.00
    Current price $319.00

    Optolong L-Extreme Dual-Band Filter

    Optolong L-Extreme Dual-Band Astronomy NarrowBand Filter The advantage of the L-eXtreme filter is that there is no transmission between the H-beta ...

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    Original price $319.00 - Original price $410.00
    Original price
    $319.00 - $410.00
    $319.00 - $410.00
    Current price $319.00
  • Original price $416.00 - Original price $416.00
    Original price
    $416.00
    $416.00 - $416.00
    Current price $416.00

    Optolong L-eXtreme F2 Fast Optics Dual Narrowband 2" (L-EXTREME-F2)

    Optolong L-eXtreme F2 Fast Optics Dual Narrowband 2" Optolong L-eXtreme F2 is a dual-band (500.7 nm and 656.28 nm, FWHM=7 nm) narrowband pass filt...

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    Original price $416.00 - Original price $416.00
    Original price
    $416.00
    $416.00 - $416.00
    Current price $416.00
  • Original price $190.00 - Original price $393.00
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    $190.00 - $393.00
    $190.00 - $393.00
    Current price $190.00

    Optolong L-Pro Filter

    Optolong L-Pro Filter The Optolong L-Pro Filter is designed to improve the visibility of various deepsky objects. By selectively reducing the trans...

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    Original price $190.00 - Original price $393.00
    Original price
    $190.00 - $393.00
    $190.00 - $393.00
    Current price $190.00
  • Original price $269.00
    Original price $269.00 - Original price $269.00
    Original price $269.00
    Current price $242.00
    $242.00 - $242.00
    Current price $242.00

    Optolong L-Quad Enhance Filter 2" Light Pollution Suppression Filter (L-QEF)

    Optolong L-Quad Enhance Filter L-Quad Enhance Filter (L-QEF) is a quad bandpass light pollution suppression filter for colour cameras. It effective...

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    Original price $269.00
    Original price $269.00 - Original price $269.00
    Original price $269.00
    Current price $242.00
    $242.00 - $242.00
    Current price $242.00
    Save $27.00 Save $0.00
  • Original price $390.00 - Original price $525.00
    Original price $390.00
    $390.00 - $525.00
    $390.00 - $525.00
    Current price $390.00

    Optolong L-Ultimate Dual-Band 3nm Filter

    Optolong L-Ultimate Filter It’s about a 3nm dual band designed to drastically reduce the effect of light pollution, the 3nm isolates the nebulae’s ...

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    Original price $390.00 - Original price $525.00
    Original price $390.00
    $390.00 - $525.00
    $390.00 - $525.00
    Current price $390.00
  • Original price $309.00 - Original price $485.00
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    $309.00 - $485.00
    $309.00 - $485.00
    Current price $309.00

    Optolong LRGB Filter Set

    Optolong LRGB Filter Set The Optolong LRGB Filter Set is designed for maximum contrast and with extremely high gradients for clear differentiation ...

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    Original price $309.00 - Original price $485.00
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    $309.00 - $485.00
    $309.00 - $485.00
    Current price $309.00
  • Original price $42.56 - Original price $63.84
    Original price
    $42.56 - $63.84
    $42.56 - $63.84
    Current price $42.56

    Optolong Moon & Skyglow Filter

    Optolong Moon & Skyglow Filter Optolong Moon & Skyglow filter is designed to darken the background sky by blocking light transmission from ...

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    Original price $42.56 - Original price $63.84
    Original price
    $42.56 - $63.84
    $42.56 - $63.84
    Current price $42.56
  • Original price $115.00 - Original price $177.00
    Original price
    $115.00 - $177.00
    $115.00 - $177.00
    Current price $115.00

    Optolong Narrowband H-Beta filter

    Optolong Narrowband H-Beta filter Opotlong narrowband H-beta filter is designed for nebula observation allowing 12nm bandwidth of light centered on...

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    Original price $115.00 - Original price $177.00
    Original price
    $115.00 - $177.00
    $115.00 - $177.00
    Current price $115.00
  • Original price $65.17 - Original price $105.07
    Original price
    $65.17 - $105.07
    $65.17 - $105.07
    Current price $65.17

    Optolong ND3.0 Neutral Density Filter

    Optolong ND3.0 Neutral Density Filter Neutral Density (ND) filters are designed to reduce transmission evenly across a portion of a specific spectr...

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    Original price $65.17 - Original price $105.07
    Original price
    $65.17 - $105.07
    $65.17 - $105.07
    Current price $65.17
  • Original price $105.07 - Original price $158.27
    Original price
    $105.07 - $158.27
    $105.07 - $158.27
    Current price $105.07

    Optolong Night Sky H-Alpha filter (IR-Pass 650nm)

    Optolong Night Sky H-Alpha filter Night Sky H-Alpha filter (IR Pass 650nm) with 50% transition from blocking to passing at about 640nm and 95% or a...

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    Original price $105.07 - Original price $158.27
    Original price
    $105.07 - $158.27
    $105.07 - $158.27
    Current price $105.07
  • Original price $1,279.00 - Original price $1,555.00
    Original price
    $1,279.00 - $1,555.00
    $1,279.00 - $1,555.00
    Current price $1,279.00

    Optolong SHO 3nm Narrowband Filters Kit

    Optolong SHO 3nm Narrowband Filters Kit Optolong SHO-3nm Narrowband Filters Introduction Optolong SHO-3nm filter kit includes SII 3nm, H-Alpha 3nm,...

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    Original price $1,279.00 - Original price $1,555.00
    Original price
    $1,279.00 - $1,555.00
    $1,279.00 - $1,555.00
    Current price $1,279.00
  • Original price $215.00 - Original price $309.00
    Original price
    $215.00 - $309.00
    $215.00 - $309.00
    Current price $215.00

    Optolong SII 6.5nm Imaging Narrowband Filter

    Optolong SII 6.5nm Imaging Narrowband Filter Optolongimproved narrowband SII6.5nm filter (Sulful II for CCD) is designed for nebula observation all...

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    Original price $215.00 - Original price $309.00
    Original price
    $215.00 - $309.00
    $215.00 - $309.00
    Current price $215.00
  • Original price $70.00 - Original price $250.00
    Original price
    $70.00 - $250.00
    $70.00 - $250.00
    Current price $70.00

    Optolong UHC Light Pollution Filter

    Optolong UHC Light Pollution Filter The UHC (Ultra High Contrast) broadband filter is designed to improve the visibility of various deepsky objects...

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    Original price $70.00 - Original price $250.00
    Original price
    $70.00 - $250.00
    $70.00 - $250.00
    Current price $70.00
  • Original price $59.00 - Original price $88.00
    Original price
    $59.00 - $88.00
    $59.00 - $88.00
    Current price $59.00

    Optolong UV/IR CUT

    Optolong UV/IR CUT Optolong UV/IR Cut filter is designed for ultraviolet and infrared wavelength blocking to improve sharpness of the image as most...

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    Original price $59.00 - Original price $88.00
    Original price
    $59.00 - $88.00
    $59.00 - $88.00
    Current price $59.00
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