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Showing 217 - 240 of 487 products
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Explore Scientific Filter Explore Scientific UHC Nebula Filter 1.25" - 310215Explore Scientific Filter Explore Scientific UHC Nebula Filter 1.25" - 310215
Explore Scientific Explore Scientific UHC Nebula Filter 1.25" - 310215
$158 CAD
In stock
Explore Scientific Filter Explore Scientific Nebula Filter 1.25" O-III - 310205Explore Scientific Filter Explore Scientific Nebula Filter 1.25" O-III - 310205
Explore Scientific Explore Scientific Nebula Filter 1.25" O-III - 310205
$158 CAD
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Baader Planetarium Accessory Baader UFC 2" Filter Slider RD50 (for unmounted round filters from 50-50.5mm Dia) - 2459113Baader Planetarium Accessory Baader UFC 2" Filter Slider RD50 (for unmounted round filters from 50-50.5mm Dia) - 2459113
Baader Planetarium Baader UFC 2" Filter Slider RD50 (for unmounted round filters from 50-50.5mm Dia) - 2459113
$70 CAD
In stock
Baader Planetarium Accessory Baader UFC 2" Filter Slider SQ50 (for unmounted filters 50x50 Square) - 2459114Baader Planetarium Accessory Baader UFC 2" Filter Slider SQ50 (for unmounted filters 50x50 Square) - 2459114
Baader Planetarium Baader UFC 2" Filter Slider SQ50 (for unmounted filters 50x50 Square) - 2459114
$80 CAD
In stock
Baader Planetarium Accessory Baader UFC S70 RASA 8" Telescope-Adapter (optical height: 1.4 mm) - 2459136Baader Planetarium Accessory Baader UFC S70 RASA 8" Telescope-Adapter (optical height: 1.4 mm) - 2459136
Baader Planetarium Baader UFC S70 RASA 8" Telescope-Adapter (optical height: 1.4 mm) - 2459136
$127 CAD
In stock
Baader Planetarium Accessory Baader U-Filter (Venus, Ultraviolet, ZWL 350nm), 2" - 2458291Baader Planetarium Accessory Baader U-Filter (Venus, Ultraviolet, ZWL 350nm), 2" - 2458291
Baader Planetarium Baader U-Filter (Venus, Ultraviolet, ZWL 350nm), 2" - 2458291
$445 CAD
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Baader Planetarium Accessory Baader Eyepiece Filter Yellow 1.25", 495nm Longpass, Optically Polished w/MC - 2458301Baader Planetarium Accessory Baader Eyepiece Filter Yellow 1.25", 495nm Longpass, Optically Polished w/MC - 2458301
Baader Planetarium Baader Eyepiece Filter Yellow 1.25", 495nm Longpass, Optically Polished w/MC - 2458301
$68 CAD
In stock
Pegasus Astro Filter Wheel Pegasus Astro Indigo Filter Wheel and LRGB 2" Filter Set Bundle - PEG-INDIGOFW-BUNDLEPegasus Astro Filter Wheel Pegasus Astro Indigo Filter Wheel and LRGB 2" Filter Set Bundle - PEG-INDIGOFW-BUNDLE
Pegasus Astro Pegasus Astro Indigo Filter Wheel and LRGB 2" Filter Set Bundle - PEG-INDIGOFW-BUNDLE
$891 CAD
In stock
Baader Planetarium Baader H-beta Narrowband-Filter (5.5nm) – CMOS-Optimized
From $247 CAD
In stock
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Baader Planetarium Accessory Baader H-alpha 50x50mm f/2 Highspeed-Filter (6.5nm) – CMOS-optimized
Baader Planetarium Baader H-alpha 50x50mm f/2 Highspeed-Filter (6.5nm) – CMOS-optimized
$393 CAD
In stock
Baader Planetarium Accessory Baader 3.5 / 4nm f/2 Ultra-Highspeed-Filterset 31mm – CMOS-optimized (H-alpha / O-III / S-II)Baader Planetarium Accessory Baader 3.5 / 4nm f/2 Ultra-Highspeed-Filterset 31mm – CMOS-optimized (H-alpha / O-III / S-II)
Baader Planetarium Baader 3.5 / 4nm f/2 Ultra-Highspeed-Filterset 31mm – CMOS-optimized (H-alpha / O-III / S-II)
$1,039 CAD
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Baader Planetarium Accessory Baader 3.5 / 4nm f/2 Ultra-Highspeed-Filterset 2" – CMOS-optimized (H-alpha / O-III / S-II)Baader Planetarium Accessory Baader 3.5 / 4nm f/2 Ultra-Highspeed-Filterset 2" – CMOS-optimized (H-alpha / O-III / S-II)
Baader Planetarium Baader 3.5 / 4nm f/2 Ultra-Highspeed-Filterset 2" – CMOS-optimized (H-alpha / O-III / S-II)
$1,465 CAD
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Baader Planetarium Accessory Baader 20nm H-alpha Bandpass-Filter 1¼" (with LPFC)Baader Planetarium Accessory Baader 20nm H-alpha Bandpass-Filter 1¼" (with LPFC)
Baader Planetarium Baader 20nm H-alpha Bandpass-Filter 1¼" (with LPFC)
$126 CAD
In stock
ToupTek Accessories ToupTek AFW-L-7-2 7x2"/50mm 7 Position Electronic Filter Wheel - AFW-L-7-2ToupTek Accessories ToupTek AFW-L-7-2 7x2"/50mm 7 Position Electronic Filter Wheel - AFW-L-7-2
ToupTek ToupTek AFW-L-7-2 7x2"/50mm 7 Position Electronic Filter Wheel - AFW-L-7-2
$420 CAD
In stock
ZWO Filter Wheel ZWO 7x50mm Square Filter Wheel - Updated Version - ZWO-EFW-7x50ZWO Filter Wheel ZWO 7x50mm Square Filter Wheel - Updated Version - ZWO-EFW-7x50
ZWO ZWO 7x50mm Square Filter Wheel - Updated Version - ZWO-EFW-7x50
$833 CAD
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Celestron Filter Celestron Light Pollution Imaging Filter, RASA 11 - 93617Celestron Filter Celestron Light Pollution Imaging Filter, RASA 11 - 93617
Celestron Celestron Light Pollution Imaging Filter, RASA 11 - 93617
$978 CAD
Only 2 units left
Askar Filter Askar Multifunctional Filter Drawer - ASK-MULTI-FD
Askar Askar Multifunctional Filter Drawer - ASK-MULTI-FD
$229 CAD
In stock
Askar Filter Askar Color Magic SHO (SII, Ha, OIII) 3nm Narrowband Imaging Filter Set - 2" MountedAskar Filter Askar Color Magic SHO (SII, Ha, OIII) 3nm Narrowband Imaging Filter Set - 2" Mounted
Askar Askar Colour Magic 3nm SHO (SII, Ha, OIII) Narrowband Imaging Filter Set - 2" Mounted
$1,920 CAD
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Askar Focal Reducer Askar Color Magic Duo-Narrowband 3nm Ha & OIII Imaging Filter - 2" MountedAskar Focal Reducer Askar Color Magic Duo-Narrowband 3nm Ha & OIII Imaging Filter - 2" Mounted
Askar Askar Colour Magic Ultra E1 Duo Narrowband Filter (OIII&Ha) - ASKAR2DBE1
$872 CAD
In stock
Baader Planetarium Filter Baader UBVRI Bessel I-Filter – PhotometricBaader Planetarium Filter Baader UBVRI Bessel I-Filter – Photometric
Baader Planetarium Baader UBVRI Bessel I-Filter – Photometric
From $211 CAD
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Optolong Filter Optolong O-III 6.5nm Filter
Optolong Optolong O-III 6.5nm Filter
From $199 CAD
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William Optics Filter William Optics STC Ultra Layer® Astro Multispectra Fiter 48mm - YF-STC-M48William Optics Filter William Optics STC Ultra Layer® Astro Multispectra Fiter 48mm - YF-STC-M48
William Optics William Optics STC Ultra Layer® Astro Multispectra Fiter 48mm - YF-STC-M48
$285 CAD
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Explore Scientific Filter Explore Scientific Nebula Filter 1.25" H-Beta - 310235Explore Scientific Filter Explore Scientific Nebula Filter 1.25" H-Beta - 310235
Explore Scientific Explore Scientific Nebula Filter 1.25" H-Beta - 310235
$187 CAD
In stock
Explore Scientific Filter Explore Scientific Neutral Density Filter 1.25" ND 0.9 - 310245Explore Scientific Filter Explore Scientific Neutral Density Filter 1.25" ND 0.9 - 310245
Explore Scientific Explore Scientific Neutral Density Filter 1.25" ND 0.9 - 310245
$72 CAD
In stock