Narrowband Filters

Narrowband Filters

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Astrodon H-alpha Filter - 3nm

Astrodon

MSRP:

Now: US$564.00 - US$1,438.00

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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 is present in emission nebula (North American, Pelican), planetary nebula (Dumbbell, Ring), Wolf-Rayet...

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Now: US$564.00 - US$1,438.00

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Now: US$564.00 - US$1,438.00

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Astrodon H-alpha Filter - 5nm

Astrodon

MSRP:

Now: US$380.00 - US$1,024.00

Was:

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 is present in emission nebula (North American, Pelican), planetary nebula (Dumbbell, Ring), Wolf-Rayet...

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Now: US$380.00 - US$1,024.00

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Now: US$380.00 - US$1,024.00

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Astrodon NII Filter - 3nm

Astrodon

MSRP:

Now: US$564.00 - US$1,438.00

Was:

What about NII and H-a? This is a bit complicated. It is not well known that most H-a filters pass both H-a and NII. H-a emits at 656.3 nm and NII emits most strongly at 658.4 nm (and weakly at 653.8 nm). These are very close together spectrally. Thus,...

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Now: US$564.00 - US$1,438.00

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Now: US$564.00 - US$1,438.00

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Astrodon OIII Filter - 3nm

Astrodon

MSRP:

Now: US$564.00 - US$1,438.00

Was:

The next filter to complement your LRGBH-a set is an oxygen filter. OIII (“ohthree”) emits light near 500 nm and is a blue-green- or teal-colored filter. Many of my images of planetary nebula and supernova remnants are taken only with H-a and...

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Now: US$564.00 - US$1,438.00

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Astrodon OIII Filter - 5nm

Astrodon

MSRP:

Now: US$380.00 - US$1,024.00

Was:

The next filter to complement your LRGBH-a set is an oxygen filter. OIII (“ohthree”) emits light near 500 nm and is a blue-green- or teal-colored filter. Many of my images of planetary nebula and supernova remnants are taken only with H-a and...

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Now: US$380.00 - US$1,024.00

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Now: US$380.00 - US$1,024.00

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Astrodon Red Continuum - 5nm

Astrodon

MSRP:

Now: US$380.00 - US$1,024.00

Was:

This Red Continuum filter (645 nm, 5 nm FWHM) produces a star map without the H-a or SII emission in order to subtract stars from emission images. Astrodon NB filters are renowned for not producing halos around stars and not leaking NIR light. When it...

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Astrodon SII Filter - 3nm

Astrodon

MSRP:

Now: US$564.00 - US$1,438.00

Was:

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 filter to consider adding to your collection after H-a and OIII is the SII (es-two) or sulfur...

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Now: US$564.00 - US$1,438.00

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Astrodon SII Filter - 5nm

Astrodon

MSRP:

Now: US$380.00 - US$1,024.00

Was:

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 filter to consider adding to your collection after H-a and OIII is the SII (es-two) or sulfur...

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Now: US$380.00 - US$1,024.00

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Atik Narrowband Filter Kit- H-alpha, OIII, SII

Atik Cameras

MSRP:

Now: US$598.00 - US$686.00

Was:

Special offer – Get 50% off any (or all) filter sets, when you buy any Atik mono camera (with the exception of the Atik GP).The SHO narrow band filter set is compatible with our filter wheels and allows astrophotographers to capture deep-sky objects in...

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Now: US$598.00 - US$686.00

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Baader 3.5/4nm f/2 Ultra-Highspeed Filter Set - CMOS-Optimized H-alpha/O-III/S-II

Baader Planetarium

MSRP:

Now: US$844.00 - US$1,879.00

Was:

f/2 Highspeed Filterset consisting of 3 Filter: H-alpha, O III and S II. Highspeed Narrowband Filter are designed especially for the delicate requirements of extremely fast astrograph optics, in particular Hyperstar and RASAConventional narrowband...

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Now: US$844.00 - US$1,879.00

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Baader 3.5nm / 4nm Narrowband Filter Set - CMOS-Optimized H-alpha/O-III/S-II

Baader Planetarium

MSRP:

Now: US$829.00 - US$1,769.00

Was:

Baader H-alpha / O-III / S-II Ultra-Narrowband (Narrowband) filter set - Premium Grade 3.5 / 4 nm half width (to harmonize the exposure time of H-alpha with O-III / S-II), recommended for optical systems from f / 10 to f / 3.5 Enables the highest...

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Now: US$829.00 - US$1,769.00

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Baader 4nm Ultra-Narrowband OIII Filter - CMOS-Optimized

Baader Planetarium

MSRP:

Now: US$285.00 - US$617.00

Was:

Baader H-alpha / O-III / S-II Ultra-Narrowband (Narrowband) filter set - Premium Grade 3.5 / 4 nm half width (to harmonize the exposure time of H-alpha with O-III / S-II), recommended for optical systems from f / 10 to f / 3.5 Enables the highest...

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Now: US$285.00 - US$617.00

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Now: US$285.00 - US$617.00

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Baader 6.5nm f/2 Highspeed Filter Set - CMOS-Optimized H-alpha/O-III/S-II

Baader Planetarium

MSRP:

Now: US$489.00 - US$1,169.00

Was:

f/2 Highspeed Filterset consisting of 3 Filter: H-alpha, O III and S II. Highspeed Narrowband Filter are designed especially for the delicate requirements of extremely fast astrograph optics, in particular Hyperstar and RASAConventional narrowband...

MSRP:

Now: US$489.00 - US$1,169.00

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Now: US$489.00 - US$1,169.00

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Baader 6.5nm H-alpha Filter - CMOS-Optimized

Baader Planetarium

MSRP:

Now: US$167.00 - US$429.00

Was:

Baader H-alpha / O-III / S-II Narrowband Filter Set - Precision Grade 6.5 nm FWHM, recommended for optical systems from f / 10 to f / 3.5 Reflex-Blocker ™ hard coated and planoptically polished - with sealed coating edges ( Life-Coat...

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Now: US$167.00 - US$429.00

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Now: US$167.00 - US$429.00

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Baader 6.5nm Narrowband Filter Set - CMOS-Optimized H-alpha/O-III/S-II

Baader Planetarium

MSRP:

Now: US$457.00 - US$1,149.00

Was:

Baader H-alpha / O-III / S-II Narrowband Filter Set - Precision Grade 6.5 nm FWHM, recommended for optical systems from f / 10 to f / 3.5 Reflex-Blocker ™ hard coated and planoptically polished - with sealed coating edges ( Life-Coat...

MSRP:

Now: US$457.00 - US$1,149.00

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Now: US$457.00 - US$1,149.00

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Baader 6.5nm OIII Filter - CMOS-Optimized

Baader Planetarium

MSRP:

Now: US$159.00 - US$419.00

Was:

6.5 nm FWHM, recommended for optical systems from f / 10 to f / 3.5 Reflex-Blocker ™ hard coated and planoptically polished - with sealed coating edges ( Life-Coat ™ ) Blackened edges all around, with...

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Now: US$159.00 - US$419.00

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Now: US$159.00 - US$419.00

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Baader 6.5nm SII Filter - CMOS-Optimized

Baader Planetarium

MSRP:

Now: US$157.00 - US$417.00

Was:

6.5 nm FWHM, recommended for optical systems from f / 10 to f / 3.5 Reflex-Blocker ™ hard coated and planoptically polished - with sealed coating edges ( Life-Coat ™ ) Blackened edges all around, with...

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Now: US$157.00 - US$417.00

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Baader H-Alpha CCD Filter -35nm

Baader Planetarium

MSRP:

Now: US$109.00 - US$264.00

Was:

Premium grade H-alpha interline chip CCD-filter for fast optical systems f/10 to f/2.8IR-blockedNO halos, NO reflections, NO ghostingNon-aging sealed coating edgesBaader's new H-Alpha passfilter enables high-contrast deep sky images of H-II regions (such...

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Now: US$109.00 - US$264.00

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Chroma H-alpha Filter - 3nm

Chroma

MSRP:

Now: US$575.00 - US$2,000.00

Was:

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 is required to separate H-alpha from the SII doublet (671.6nm and 673.1nm). Filters designed for use...

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Now: US$575.00 - US$2,000.00

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Now: US$575.00 - US$2,000.00

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Chroma H-alpha Filter - 5nm

Chroma

MSRP:

Now: US$460.00 - US$2,000.00

Was:

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 is required to separate H-alpha from the SII doublet (671.6nm and 673.1nm). Filters designed for use...

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Now: US$460.00 - US$2,000.00

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