Narrow Band & UV/IR Pass Filters

Optolong 1.25'' IR Pass 685 nm Planetary Filter [OPTO-IRPASS-125]

$79.00 USD

IN STOCK, usually ships within 48h or less directly from our Canadian warehouse

Baader H-alpha 1¼" f/2 Highspeed-Filter (6.5nm) – CMOS-optimized [BA-FCHALHS-1]

$177.00 USD

Baader H-beta 1¼" Narrowband-Filter (5.5nm) – CMOS-optimized [BA-FCHBN-1]

$217.00 USD

Narrowband S-II (8nm) CCD-Filter, 1.25" (with LPFC) [BA-FSIIN-1]

$149.00 USD

IN STOCK, usually ships within 48h or less directly from our Canadian warehouse

Baader Ultra-Narrowband 4.5nm O-III CCD-Filter 1¼", (with LPFC) [BA-FCOIIIHS-1]

$177.00 USD

Baader S-II 1¼" f/2 Highspeed-Filter (6.5nm) – CMOS-optimized [BA-FCSIIHS-1]

$174.00 USD

Baader S-II 2" f/2 Highspeed-Filter (6.5nm) – CMOS-optimized [BA-FCSIIHS-2]

$285.00 USD

Baader S-II 31mm f/2 Highspeed-Filter (6.5nm) – CMOS-optimized [BA-FCSIIHS-RD31]

$187.00 USD

Baader S-II 36mm f/2 Highspeed-Filter (6.5nm) – CMOS-optimized [BA-FCSIIHS-RD36]

$207.00 USD

Baader S-II 50.4mm f/2 Highspeed-Filter (6.5nm) – CMOS-optimized [BA-FCSIIHS-RD50]

$299.00 USD

Baader S-II 50x50mm f/2 Highspeed-Filter (6.5nm) – CMOS-optimized [BA-FCSIIHS-SQ50]

$344.00 USD

Baader S-II 65x65mm f/2 Highspeed-Filter (6.5nm) – CMOS-optimized [BA-FCSIIHS-SQ65]

$424.00 USD

Baader O-III 2" f/2 Highspeed-Filter (6.5nm) – CMOS-optimized [BA-FCOIIIHS-2]

$287.00 USD

Baader O-III 1¼" f/2 Ultra-Highspeed-Filter (4nm) – CMOS-optimized [BA-FCOIIIHSU-1]

$297.00 USD

Baader O-III 2" f/2 Ultra-Highspeed-Filter (4nm) – CMOS-optimized [BA-FCOIIIHSU-2]

$414.00 USD

Baader S-II 1¼" f/2 Ultra-Highspeed-Filter (4nm) – CMOS-optimized [BA-FCSIIHSU-1]

$289.00 USD

Baader S-II 2" f/2 Ultra-Highspeed-Filter (4nm) – CMOS-optimized [BA-FCSIIHSU-2]

$424.00 USD

Baader S-II 31mm f/2 Ultra-Highspeed-Filter (4nm) – CMOS-optimized [BA-FCSIIHSU-RD31]

$315.00 USD

Baader S-II 36mm f/2 Ultra-Highspeed-Filter (4nm) – CMOS-optimized [BA-FCSIIHSU-RD36]

$374.00 USD

Baader S-II 50.4mm f/2 Ultra-Highspeed-Filter (4nm) – CMOS-optimized [BA-FCSIIHSU-RD50]

$459.00 USD

Baader S-II 50x50mm f/2 Ultra-Highspeed-Filter (4nm) – CMOS-optimized [BA-FCSIIHSU-SQ50]

$459.00 USD

Baader S-II 65x65mm f/2 Ultra-Highspeed-Filter (4nm) – CMOS-optimized [BA-FCSIIHSU-SQ65]

$599.00 USD

Baader S-II 1¼" Narrowband-Filter (6.5nm) – CMOS-optimized [BA-FCSIIN-1]

$157.00 USD

Baader S-II 1¼" Ultra-Narrowband-Filter (4nm) – CMOS-optimized [BA-FCSIINU-1]

$289.00 USD

Optolong 2'' IR Pass 685 nm Planetary Filter [OPTO-IRPASS-2]

$119.00 USD

IN STOCK, usually ships within 48h or less directly from our Canadian warehouse

Optolong H-Alpha 7nm (1.25'') CCD Filter [OPTO-HA7-125]

$175.00 USD

IN STOCK, usually ships within 48h or less directly from our Canadian warehouse

Optolong SII-CCD 6.5nm (1.25'') CCD Filter [OPTO-SII-CCD65-125]

$159.00 USD

IN STOCK, usually ships within 48h or less directly from our Canadian warehouse

Baader H-alpha 2" f/2 Highspeed-Filter (6.5nm) – CMOS-optimized [BA-FCHALHS-2]

$289.00 USD

Baader H-beta 2" Narrowband-Filter (5.5nm) – CMOS-optimized [BA-FCHBN-2]

$346.00 USD

Baader S-II 2" Narrowband-Filter (6.5nm) – CMOS-optimized [BA-FCSIIN-2]

$267.00 USD

Baader O-III 31mm f/2 Highspeed-Filter (6.5nm) – CMOS-optimized [BA-FCOIIIHS-RD31]

$185.00 USD

Baader O-III 31mm f/2 Ultra-Highspeed-Filter (4nm) – CMOS-optimized [BA-FCOIIIHSU-RD31]

$317.00 USD

Baader S-II 2" Ultra-Narrowband-Filter (4nm) – CMOS-optimized [BA-FCSIINU-2]

$427.00 USD

Optolong H-Alpha 7nm (2'') CCD Filter [OPTO-HA7-2]

$259.00 USD

IN STOCK, usually ships within 48h or less directly from our Canadian warehouse

Optolong SII-CCD 6.5nm (2'') CCD Filter [OPTO-SII-CCD65-2]

$250.00 USD

IN STOCK, usually ships within 48h or less directly from our Canadian warehouse

Baader H-beta 50.4mm Narrowband-Filter (5.5nm) – CMOS-optimized [BA-FCHBN-RD50]

$369.00 USD

Narrowband S-II (8nm) CCD-Filter, 36 x 2mm Round (without Cell) [BA-FSIIN-RD36]

$188.00 USD

IN STOCK, usually ships within 48h or less directly from our Canadian warehouse

Baader O-III 36mm f/2 Highspeed-Filter (6.5nm) – CMOS-optimized [BA-FCOIIIHS-RD36]

$204.00 USD

Baader H-alpha 31mm f/2 Highspeed-Filter (6.5nm) – CMOS-optimized [BA-FCHALHS-RD31]

$184.00 USD

Baader O-III 36mm f/2 Ultra-Highspeed-Filter (4nm) – CMOS-optimized [BA-FCOIIIHSU-RD36]

$367.00 USD

Baader S-II 31mm Narrowband-Filter (6.5nm) – CMOS-optimized [BA-FCSIIN-RD31]

$167.00 USD

Baader S-II 36mm Narrowband-Filter (6.5nm) – CMOS-optimized [BA-FCSIIN-RD36]

$194.00 USD

Narrowband S-II (8nm) CCD-Filter, 36 x 2mm Round (without Cell) [BA-FSIIN-RD36]

$188.00 USD

IN STOCK, usually ships within 48h or less directly from our Canadian warehouse

Baader S-II 31mm Narrowband-Filter (6.5nm) – CMOS-optimized [BA-FCSIINU-RD31]

$317.00 USD

Baader S-II 36mm Ultra-Narrowband-Filter (4nm) – CMOS-optimized [BA-FCSIINU-RD36]

$374.00 USD

Baader H-beta 31mm Narrowband-Filter (5.5nm) – CMOS-optimized [BA-FCHBN-RD31]

$229.00 USD

Baader H-beta 36mm Narrowband-Filter (5.5nm) – CMOS-optimized [BA-FCHBN-RD36]

$252.00 USD

Optolong H-Alpha 7nm (Round 31nm without housing) CCD Filter [OPTO-HA7-31]

$190.00 USD

Back Order / Waiting List

Optolong OIII-CCD 6.5nm (1.25'') CCD Filter [OPTO-OIII-CCD65-125]

$159.00 USD

IN STOCK, usually ships within 48h or less directly from our Canadian warehouse

Optolong SII-CCD 6.5nm (Round 31mm Without Housing) CCD Filter [OPTO-SII-CCD65-31]

$193.00 USD

Back Order / Waiting List

Baader H-beta 50x50mm Narrowband-Filter (5.5nm) – CMOS-optimized [BA-FCHBN-SQ50]

$399.00 USD

Narrowband S-II (8nm) CCD-Filter, 50.4 x 3mm Round (without Cell) [BA-FSIIN-RD50]

$299.00 USD

IN STOCK, usually ships within 48h or less directly from our Canadian warehouse

Baader O-III 50.4mm f/2 Ultra-Highspeed-Filter (4nm) – CMOS-optimized [BA-FCOIIIHSU-RD50]

$447.00 USD

Baader H-alpha 36mm f/2 Highspeed-Filter (6.5nm) – CMOS-optimized [BA-FCHALHS-RD36]

$207.00 USD

Baader S-II 50.4mm Narrowband-Filter (6.5nm) – CMOS-optimized [BA-FCSIIN-RD50]

$319.00 USD

Baader S-II 50.4mm Ultra-Narrowband-Filter (4nm) – CMOS-optimized [BA-FCSIINU-RD50]

$464.00 USD

Optolong H-Alpha 7nm (Round 36nm without housing) CCD Filter [OPTO-HA7-36]

$193.00 USD

Back Order / Waiting List

Optolong OIII-CCD 6.5nm (2'') CCD Filter [OPTO-OIII-CCD65-2]

$255.00 USD

IN STOCK, usually ships within 48h or less directly from our Canadian warehouse

Optolong SII-CCD 6.5nm (Round 36mm Without Housing) CCD Filter [OPTO-SII-CCD65-36]

$199.00 USD

Back Order / Waiting List

Baader S-II 50x50mm Narrowband-Filter (6.5nm) – CMOS-optimized [BA-FCSIIN-SQ50]

$339.00 USD