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Showing 121 - 144 of 184 products
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Antlia Filter Antlia ALP-T Dual Band 2" 5nm Mounted FilterAntlia Filter Antlia ALP-T Dual Band 2" 5nm Mounted Filter
Antlia Antlia ALP-T Dual Band Highspeed Ha/OIII 2" 5nm Mounted Filter
$546 CAD
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Optolong Filter Optolong L1 Dual - Combo Set (L-Quad Enhance and L-Para) - OPT-L1-DUALOptolong Filter Optolong L1 Dual - Combo Set (L-Quad Enhance and L-Para) - OPT-L1-DUAL
Optolong Optolong 2" L1 Dual - Combo Set (L-Quad Enhance and L-Para) - OPT-L1-DUAL
$546 CAD $558 CAD
In stock
Antlia Filters Antlia ALP-T Dual Band 3nm SII & OIII 3nm 2 Inch Mounted Filter - ALP-T-3NM-SII/OIII-2
Antlia Antlia ALP-T Dual Band 3nm SII & OIII 3nm 2 Inch Mounted Filter - ALP-T-3NM-SII/OIII-2
$546 CAD
In stock
Save $124
Optolong Filter 1.25" Optolong 7nm/6.5nm SHO S-II/H-Alpha/O-III 3 Piece Filter SetOptolong Filter 31mm Unmounted Optolong 7nm/6.5nm SHO S-II/H-Alpha/O-III 3 Piece Filter Set
Optolong Optolong 7nm/6.5nm SHO S-II/H-Alpha/O-III 3 Piece Filter Set
From $553 CAD $677 CAD
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Baader Planetarium Accessory Baader H-alpha 2" f/3 Ultra-Highspeed-Filter (3.5nm) – CMOS-optimizedBaader Planetarium Accessory Baader H-alpha 2" f/3 Ultra-Highspeed-Filter (3.5nm) – CMOS-optimized
Baader Planetarium Baader H-alpha 2" f/3 Ultra-Highspeed-Filter (3.5nm) – CMOS-optimized
$555 CAD
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Baader Planetarium Accessory Baader O-III 50.4mm f/3 Ultra-Highspeed-Filter (4nm) – CMOS-optimizedBaader Planetarium Accessory Baader O-III 50.4mm f/3 Ultra-Highspeed-Filter (4nm) – CMOS-optimized
Baader Planetarium Baader O-III 50.4mm f/3 Ultra-Highspeed-Filter (4nm) – CMOS-optimized
$562 CAD
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Baader Planetarium Accessory Baader O-III 50.4mm f/2 Ultra-Highspeed-Filter (4nm) – CMOS-optimizedBaader Planetarium Accessory Baader O-III 50.4mm f/2 Ultra-Highspeed-Filter (4nm) – CMOS-optimized
Baader Planetarium Baader O-III 50.4mm f/2 Ultra-Highspeed-Filter (4nm) – CMOS-optimized
$564 CAD
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Baader Planetarium Accessory Baader 6.5nm Narrowband-Filterset 1¼" – CMOS-optimized (H-alpha / O-III / S-II)Baader Planetarium Accessory Baader 6.5nm Narrowband-Filterset 1¼" – CMOS-optimized (H-alpha / O-III / S-II)
Baader Planetarium Baader 6.5nm Narrowband-Filterset 1¼" – CMOS-optimized (H-alpha / O-III / S-II)
$567 CAD
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Baader Planetarium Accessory Baader S-II 50.4mm f/3 Ultra-Highspeed-Filter (4nm) – CMOS-optimizedBaader Planetarium Accessory Baader S-II 50.4mm f/3 Ultra-Highspeed-Filter (4nm) – CMOS-optimized
Baader Planetarium Baader S-II 50.4mm f/3 Ultra-Highspeed-Filter (4nm) – CMOS-optimized
$568 CAD
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Baader Planetarium Accessory Baader S-II 50.4mm f/2 Ultra-Highspeed-Filter (4nm) – CMOS-optimizedBaader Planetarium Accessory Baader S-II 50.4mm f/2 Ultra-Highspeed-Filter (4nm) – CMOS-optimized
Baader Planetarium Baader S-II 50.4mm f/2 Ultra-Highspeed-Filter (4nm) – CMOS-optimized
$571 CAD
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William Optics Filter William Optics STC Astro Duo-Narrowband Filter 48mm - YF-STC-ADNWilliam Optics Filter William Optics STC Astro Duo-Narrowband Filter 48mm - YF-STC-ADN
William Optics William Optics STC Astro Duo-Narrowband Filter 48mm - YF-STC-ADN
$575 CAD
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Vaonis Telescope Accessories Vaonis Vespera Dual Band Filter - AC022Vaonis Telescope Accessories Vaonis Vespera Dual Band Filter - AC022
Vaonis Vaonis Vespera Dual Band Filter - AC022
$575 CAD
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Baader Planetarium Accessory Baader O-III 50x50mm f/3 Ultra-Highspeed-Filter (4nm) – CMOS-optimizedBaader Planetarium Accessory Baader O-III 50x50mm f/3 Ultra-Highspeed-Filter (4nm) – CMOS-optimized
Baader Planetarium Baader O-III 50x50mm f/3 Ultra-Highspeed-Filter (4nm) – CMOS-optimized
$576 CAD
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Baader Planetarium Accessory Baader S-II 50x50mm f/3 Ultra-Highspeed-Filter (4nm) – CMOS-optimizedBaader Planetarium Accessory Baader S-II 50x50mm f/3 Ultra-Highspeed-Filter (4nm) – CMOS-optimized
Baader Planetarium Baader S-II 50x50mm f/3 Ultra-Highspeed-Filter (4nm) – CMOS-optimized
$580 CAD
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Baader Planetarium Accessory Baader O-III 50x50mm f/2 Ultra-Highspeed-Filter (4nm) – CMOS-optimizedBaader Planetarium Accessory Baader O-III 50x50mm f/2 Ultra-Highspeed-Filter (4nm) – CMOS-optimized
Baader Planetarium Baader O-III 50x50mm f/2 Ultra-Highspeed-Filter (4nm) – CMOS-optimized
$581 CAD
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Baader Planetarium Accessory Baader S-II 50x50mm f/2 Ultra-Highspeed-Filter (4nm) – CMOS-optimizedBaader Planetarium Accessory Baader S-II 50x50mm f/2 Ultra-Highspeed-Filter (4nm) – CMOS-optimized
Baader Planetarium Baader S-II 50x50mm f/2 Ultra-Highspeed-Filter (4nm) – CMOS-optimized
$581 CAD
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Antlia Filter Antlia Ha, SII and OIII 3nm Pro Highspeed Filter - 2'' Mounted
Antlia Antlia Ha, SII and OIII 3nm Pro Highspeed Filter - 2'' Mounted
From $588 CAD
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Baader Planetarium Accessory Baader 6.5nm Narrowband-Filterset 31mm – CMOS-optimized (H-alpha / O-III / S-II)Baader Planetarium Accessory Baader 6.5nm Narrowband-Filterset 31mm – CMOS-optimized (H-alpha / O-III / S-II)
Baader Planetarium Baader 6.5nm Narrowband-Filterset 31mm – CMOS-optimized (H-alpha / O-III / S-II)
$597 CAD
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Baader Planetarium Accessory Baader H-alpha 50.4mm f/3 Ultra-Highspeed-Filter (3.5nm) – CMOS-optimizedBaader Planetarium Accessory Baader H-alpha 50.4mm f/3 Ultra-Highspeed-Filter (3.5nm) – CMOS-optimized
Baader Planetarium Baader H-alpha 50.4mm f/3 Ultra-Highspeed-Filter (3.5nm) – CMOS-optimized
$606 CAD
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Baader Planetarium Filter Baader 6.5nm f/2 Highspeed Filter Set – CMOS-Optimized (H-alpha / O-III / S-II)Baader Planetarium Filter Baader 6.5nm f/2 Highspeed Filter Set – CMOS-Optimized (H-alpha / O-III / S-II)
Baader Planetarium Baader 6.5nm f/2 Highspeed Filter Set – CMOS-Optimized (H-alpha / O-III / S-II)
From $611 CAD
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Antlia Filter Antlia H-Alpha Filter - 2.8nm Extra Narrowband Filters - 36mm UnmountedAntlia Filter H-Alpha Antlia H-Alpha Filter - 2.8nm Extra Narrowband Filters - 36mm Unmounted
Antlia Antlia H-Alpha Filter - 2.8nm Extra Narrowband Filters - 36mm Unmounted
$611 CAD
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Askar Filter Askar Color Magic 3nm Narrowband Oxygen III (OIII) Imaging Filter - 2" MountedAskar Filter Askar Color Magic 3nm Narrowband Oxygen III (OIII) Imaging Filter - 2" Mounted
Askar Askar Colour Magic 3nm Narrowband Oxygen III (OIII) Imaging Filter - 2" Mounted
$640 CAD
In stock
Askar Filter Askar Color Magic 3nm Narrowband Sulfur II (SII) Imaging Filter - 2" MountedAskar Filter Askar Color Magic 3nm Narrowband Sulfur II (SII) Imaging Filter - 2" Mounted
Askar Askar Colour Magic 3nm Narrowband Sulfur II (SII) Imaging Filter - 2" Mounted
$640 CAD
In stock
Askar Filter Askar Color Magic 3nm Narrowband H-Alpha (Ha) Imaging Filter - 2" MountedAskar Filter Askar Color Magic 3nm Narrowband H-Alpha (Ha) Imaging Filter - 2" Mounted
Askar Askar Colour Magic 3nm Narrowband H-Alpha (Ha) Imaging Filter - 2" Mounted
$640 CAD
In stock