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  • Original price CA$658.00 - Original price CA$658.00
    Original price CA$658.00
    CA$678.00
    CA$678.00 - CA$678.00
    Current price CA$678.00

    Astrodon H-alpha Filter - 5nm

    DON-HA5_31R
    Only 1 left!

    H-α (hydrogen-alpha) at 656 nm (nanometers) is deep red in color and the most popular narrowband filter. Hydrogen is ubiquitous in the cosmos and i...

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    Original price CA$658.00 - Original price CA$658.00
    Original price CA$658.00
    CA$678.00
    CA$678.00 - CA$678.00
    Current price CA$678.00
  • Original price CA$658.00
    Original price CA$658.00 - Original price CA$658.00
    Original price CA$658.00
    Current price CA$595.00
    CA$595.00 - CA$595.00
    Current price CA$595.00

    Astrodon SII Filter - 5nm

    DON-SII5_31R
    Only 1 left!

    If you want the look of Hubble Space Telescope (HST) images, such as the famous “Pillars of Creation” (the Eagle Nebula, Messier 16), then the next...

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    Original price CA$658.00
    Original price CA$658.00 - Original price CA$658.00
    Original price CA$658.00
    Current price CA$595.00
    CA$595.00 - CA$595.00
    Current price CA$595.00
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  • Original price CA$388.00
    Original price CA$388.00 - Original price CA$388.00
    Original price CA$388.00
    Current price CA$327.00
    CA$327.00 - CA$327.00
    Current price CA$327.00

    Baader 4nm 1.25" Ultra-Narrowband OIII Filter - CMOS-Optimized (USED)

    BAA-2961400-125-USED
    Only 1 left!

    In perfect condition, used Baader H-alpha / O-III / S-II Ultra-Narrowband (Narrowband) filter set - Premium Grade 3.5 / 4 nm half width (to harmo...

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    Original price CA$388.00
    Original price CA$388.00 - Original price CA$388.00
    Original price CA$388.00
    Current price CA$327.00
    CA$327.00 - CA$327.00
    Current price CA$327.00
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  • Original price CA$265.00
    Original price CA$265.00 - Original price CA$265.00
    Original price CA$265.00
    Current price CA$248.00
    CA$248.00 - CA$248.00
    Current price CA$248.00

    Baader 6.5nm 36mm H-alpha Filter - CMOS-Optimized (OPEN BOX)

    BAA-2961100-36-OPENBOX
    Only 1 left!

    In perfect condition, open box Baader H-alpha / O-III / S-II Narrowband Filter Set - Precision Grade 6.5 nm FWHM, recommended for optical systems...

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    Original price CA$265.00
    Original price CA$265.00 - Original price CA$265.00
    Original price CA$265.00
    Current price CA$248.00
    CA$248.00 - CA$248.00
    Current price CA$248.00
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  • Original price CA$420.00
    Original price CA$420.00 - Original price CA$420.00
    Original price CA$420.00
    Current price CA$288.00
    CA$288.00 - CA$288.00
    Current price CA$288.00

    Baader CCD LRGB 31mm Unmounted Filter Set (OPEN BOX)

    BAA-2459474-OPENBOX
    Only 1 left!

    In perfect condition, open box Filter size 31 mm - round, unmounted - filter thickness 2 mm Set of L-R-G-B filters High-quality anti-reflective ...

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    Original price CA$420.00
    Original price CA$420.00 - Original price CA$420.00
    Original price CA$420.00
    Current price CA$288.00
    CA$288.00 - CA$288.00
    Current price CA$288.00
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  • Original price CA$385.00 - Original price CA$1,015.00
    Original price CA$385.00 - Original price CA$1,015.00
    Original price CA$385.00
    CA$346.50 - CA$913.50
    CA$346.50 - CA$913.50
    Current price CA$346.50

    Chroma B-Bessel Filter

    Options available

    Blue photometric filter in UVBRI series Filters designed for use with CCD and for f/4.0 or slower No reflections leading to image distortions or ""...

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    Original price CA$385.00 - Original price CA$1,015.00
    Original price CA$385.00 - Original price CA$1,015.00
    Original price CA$385.00
    CA$346.50 - CA$913.50
    CA$346.50 - CA$913.50
    Current price CA$346.50
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  • Original price CA$210.00 - Original price CA$700.00
    Original price CA$210.00 - Original price CA$700.00
    Original price CA$210.00
    CA$189.00 - CA$630.00
    CA$189.00 - CA$630.00
    Current price CA$189.00

    Chroma Blue Filter

    Options available

    Blue filter for color rendering with RGB set Filters designed for use with CCD and for f/4.0 or slower No reflections leading to image distortions ...

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    Original price CA$210.00 - Original price CA$700.00
    Original price CA$210.00 - Original price CA$700.00
    Original price CA$210.00
    CA$189.00 - CA$630.00
    CA$189.00 - CA$630.00
    Current price CA$189.00
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  • Original price CA$182.00 - Original price CA$525.00
    Original price CA$182.00 - Original price CA$525.00
    Original price CA$182.00
    CA$163.80 - CA$472.50
    CA$163.80 - CA$472.50
    Current price CA$163.80

    Chroma Clear Filter

    Options available

    Filters designed for use with CCD and for f/4.0 or slower No reflections leading to image distortions or "back reflections" Transmitted wavefront ...

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    Original price CA$182.00 - Original price CA$525.00
    Original price CA$182.00 - Original price CA$525.00
    Original price CA$182.00
    CA$163.80 - CA$472.50
    CA$163.80 - CA$472.50
    Current price CA$163.80
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  • Original price CA$210.00 - Original price CA$700.00
    Original price CA$210.00 - Original price CA$700.00
    Original price CA$210.00
    CA$189.00 - CA$630.00
    CA$189.00 - CA$630.00
    Current price CA$189.00

    Chroma Green Filter

    Options available

    Green filter for color rendering with RGB set Filters designed for use with CCD and for f/4.0 or slower No reflections leading to image distortions...

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    Original price CA$210.00 - Original price CA$700.00
    Original price CA$210.00 - Original price CA$700.00
    Original price CA$210.00
    CA$189.00 - CA$630.00
    CA$189.00 - CA$630.00
    Current price CA$189.00
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  • Original price CA$805.00 - Original price CA$2,170.00
    Original price CA$805.00 - Original price CA$2,170.00
    Original price CA$805.00
    CA$724.50 - CA$1,953.00
    CA$724.50 - CA$1,953.00
    Current price CA$724.50

    Chroma H-alpha Filter - 3nm

    Options available

    H-alpha filters are essential for imaging nebulae and other objects which are rich in ionized hydrogen. At 656.3nm, a narrow-band emission filter i...

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    Original price CA$805.00 - Original price CA$2,170.00
    Original price CA$805.00 - Original price CA$2,170.00
    Original price CA$805.00
    CA$724.50 - CA$1,953.00
    CA$724.50 - CA$1,953.00
    Current price CA$724.50
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  • Original price CA$644.00 - Original price CA$1,932.00
    Original price CA$644.00 - Original price CA$1,932.00
    Original price CA$644.00
    CA$579.60 - CA$1,738.80
    CA$579.60 - CA$1,738.80
    Current price CA$579.60

    Chroma H-alpha Filter - 5nm

    Options available

    H-alpha filters are essential for imaging nebulae and other objects which are rich in ionized hydrogen. At 656.3nm, a narrow-band emission filter i...

    View full details
    Original price CA$644.00 - Original price CA$1,932.00
    Original price CA$644.00 - Original price CA$1,932.00
    Original price CA$644.00
    CA$579.60 - CA$1,738.80
    CA$579.60 - CA$1,738.80
    Current price CA$579.60
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  • Original price CA$385.00 - Original price CA$1,162.00
    Original price CA$385.00 - Original price CA$1,162.00
    Original price CA$385.00
    CA$346.50 - CA$1,045.80
    CA$346.50 - CA$1,045.80
    Current price CA$346.50

    Chroma H-alpha Filter - 8nm

    Options available

    H-alpha filters are essential for imaging nebulae and other objects which are rich in ionized hydrogen. At 656.3nm, a narrow-band emission filter i...

    View full details
    Original price CA$385.00 - Original price CA$1,162.00
    Original price CA$385.00 - Original price CA$1,162.00
    Original price CA$385.00
    CA$346.50 - CA$1,045.80
    CA$346.50 - CA$1,045.80
    Current price CA$346.50
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  • Original price CA$805.00 - Original price CA$2,170.00
    Original price CA$805.00 - Original price CA$2,170.00
    Original price CA$805.00
    CA$724.50 - CA$1,953.00
    CA$724.50 - CA$1,953.00
    Current price CA$724.50

    Chroma H-alpha Filter Optimized for f/3 - 3nm

    Options available

    H-alpha filters are essential for imaging nebulae and other objects which are rich in ionized hydrogen. At 656.3nm, a narrow-band emission filter i...

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    Original price CA$805.00 - Original price CA$2,170.00
    Original price CA$805.00 - Original price CA$2,170.00
    Original price CA$805.00
    CA$724.50 - CA$1,953.00
    CA$724.50 - CA$1,953.00
    Current price CA$724.50
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  • Original price CA$805.00 - Original price CA$2,170.00
    Original price CA$805.00 - Original price CA$2,170.00
    Original price CA$805.00
    CA$724.50 - CA$1,953.00
    CA$724.50 - CA$1,953.00
    Current price CA$724.50

    Chroma H-beta Filter - 3nm

    Options available

    H-beta filters are also useful for imaging nebulae and objects rich in ionized hydrogen. At 486.1nm, a narrow-band filter is required to separate H...

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    Original price CA$805.00 - Original price CA$2,170.00
    Original price CA$805.00 - Original price CA$2,170.00
    Original price CA$805.00
    CA$724.50 - CA$1,953.00
    CA$724.50 - CA$1,953.00
    Current price CA$724.50
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  • Original price CA$644.00 - Original price CA$1,932.00
    Original price CA$644.00 - Original price CA$1,932.00
    Original price CA$644.00
    CA$579.60 - CA$1,738.80
    CA$579.60 - CA$1,738.80
    Current price CA$579.60

    Chroma H-beta Filter - 5nm

    Options available

    H-beta filters are also useful for imaging nebulae and objects rich in ionized hydrogen. At 486.1nm, a narrow-band filter is required to separate H...

    View full details
    Original price CA$644.00 - Original price CA$1,932.00
    Original price CA$644.00 - Original price CA$1,932.00
    Original price CA$644.00
    CA$579.60 - CA$1,738.80
    CA$579.60 - CA$1,738.80
    Current price CA$579.60
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  • Original price CA$1,085.00 - Original price CA$4,690.00
    Original price CA$1,085.00 - Original price CA$4,690.00
    Original price CA$1,085.00
    CA$976.50 - CA$4,221.00
    CA$976.50 - CA$4,221.00
    Current price CA$976.50

    Chroma HaLRGB Filter Set

    Options available

    8nm H-alpha, Luminance, Red, Green, and Blue astronomy filter set Filters designed for use with CCD and for f/4.0 or slower No reflections leading ...

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    Original price CA$1,085.00 - Original price CA$4,690.00
    Original price CA$1,085.00 - Original price CA$4,690.00
    Original price CA$1,085.00
    CA$976.50 - CA$4,221.00
    CA$976.50 - CA$4,221.00
    Current price CA$976.50
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  • Original price CA$385.00 - Original price CA$1,015.00
    Original price CA$385.00 - Original price CA$1,015.00
    Original price CA$385.00
    CA$346.50 - CA$913.50
    CA$346.50 - CA$913.50
    Current price CA$346.50

    Chroma I-Bessel Filter

    Options available

    NIR photometric filter in UVBRI series Filters designed for use with CCD and for f/4.0 or slower No reflections leading to image distortions or ""b...

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    Original price CA$385.00 - Original price CA$1,015.00
    Original price CA$385.00 - Original price CA$1,015.00
    Original price CA$385.00
    CA$346.50 - CA$913.50
    CA$346.50 - CA$913.50
    Current price CA$346.50
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  • Original price CA$385.00 - Original price CA$1,106.00
    Original price CA$385.00 - Original price CA$1,106.00
    Original price CA$385.00
    CA$346.50 - CA$995.40
    CA$346.50 - CA$995.40
    Current price CA$346.50

    Chroma Jovian Methane Filter

    Options available

    Methane absorption band filter. This filter enhances contrast when imaging objects containing significant levels of methane. Methane-rich component...

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    Original price CA$385.00 - Original price CA$1,106.00
    Original price CA$385.00 - Original price CA$1,106.00
    Original price CA$385.00
    CA$346.50 - CA$995.40
    CA$346.50 - CA$995.40
    Current price CA$346.50
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  • Original price CA$385.00 - Original price CA$770.00
    Original price CA$385.00 - Original price CA$770.00
    Original price CA$385.00
    CA$346.50 - CA$693.00
    CA$346.50 - CA$693.00
    Current price CA$346.50

    Chroma LoGlow Filter

    Options available

    Blocks common spectral lines from lighting sources. This filter provides balanced color for the visible spectrum while blocking most emission from ...

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    Original price CA$385.00 - Original price CA$770.00
    Original price CA$385.00 - Original price CA$770.00
    Original price CA$385.00
    CA$346.50 - CA$693.00
    CA$346.50 - CA$693.00
    Current price CA$346.50
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  • Original price CA$735.00 - Original price CA$2,695.00
    Original price CA$735.00 - Original price CA$2,695.00
    Original price CA$735.00
    CA$661.50 - CA$2,425.50
    CA$661.50 - CA$2,425.50
    Current price CA$661.50

    Chroma LRGB Filter Set

    Options available

    Luminance, Red, Green, and Blue astronomy filter set Filters designed for use with CCD and for f/4.0 or slower No reflections leading to image dist...

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    Original price CA$735.00 - Original price CA$2,695.00
    Original price CA$735.00 - Original price CA$2,695.00
    Original price CA$735.00
    CA$661.50 - CA$2,425.50
    CA$661.50 - CA$2,425.50
    Current price CA$661.50
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  • Original price CA$210.00 - Original price CA$700.00
    Original price CA$210.00 - Original price CA$700.00
    Original price CA$210.00
    CA$189.00 - CA$630.00
    CA$189.00 - CA$630.00
    Current price CA$189.00

    Chroma Luminance Filter

    Options available

    Luminance filter for enhancing color rendering with RGB set Filters designed for use with CCD and for f/4.0 or slower No reflections leading to ima...

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    Original price CA$210.00 - Original price CA$700.00
    Original price CA$210.00 - Original price CA$700.00
    Original price CA$210.00
    CA$189.00 - CA$630.00
    CA$189.00 - CA$630.00
    Current price CA$189.00
    Save up to 10% Save %
  • Original price CA$805.00 - Original price CA$2,170.00
    Original price CA$805.00 - Original price CA$2,170.00
    Original price CA$805.00
    CA$724.50 - CA$1,953.00
    CA$724.50 - CA$1,953.00
    Current price CA$724.50

    Chroma OIII Filter - 3nm

    Options available

    Chroma’s OIII filters isolate the 500.7nm primary emission line of doubly ionized oxygen. After H-alpha, this is the next most common emission when...

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    Original price CA$805.00 - Original price CA$2,170.00
    Original price CA$805.00 - Original price CA$2,170.00
    Original price CA$805.00
    CA$724.50 - CA$1,953.00
    CA$724.50 - CA$1,953.00
    Current price CA$724.50
    Save up to 10% Save %
  • Original price CA$644.00 - Original price CA$1,932.00
    Original price CA$644.00 - Original price CA$1,932.00
    Original price CA$644.00
    CA$579.60 - CA$1,738.80
    CA$579.60 - CA$1,738.80
    Current price CA$579.60

    Chroma OIII Filter - 5nm

    Options available

    Chroma’s OIII filters isolate the 500.7nm primary emission line of doubly ionized oxygen. After H-alpha, this is the next most common emission when...

    View full details
    Original price CA$644.00 - Original price CA$1,932.00
    Original price CA$644.00 - Original price CA$1,932.00
    Original price CA$644.00
    CA$579.60 - CA$1,738.80
    CA$579.60 - CA$1,738.80
    Current price CA$579.60
    Save up to 10% Save %
  • Original price CA$385.00 - Original price CA$1,162.00
    Original price CA$385.00 - Original price CA$1,162.00
    Original price CA$385.00
    CA$346.50 - CA$1,045.80
    CA$346.50 - CA$1,045.80
    Current price CA$346.50

    Chroma OIII Filter - 8nm

    Options available

    Chroma’s OIII filters isolate the 500.7nm primary emission line of doubly ionized oxygen. After H-alpha, this is the next most common emission when...

    View full details
    Original price CA$385.00 - Original price CA$1,162.00
    Original price CA$385.00 - Original price CA$1,162.00
    Original price CA$385.00
    CA$346.50 - CA$1,045.80
    CA$346.50 - CA$1,045.80
    Current price CA$346.50
    Save up to 10% Save %