Askar Colour Magic 6nm Deep-sky Duo Narrowband Filter (OIII+SII)

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For all astrophotography enthusiasts, filters are one of the indispensable accessories to achieve perfect deep-sky imaging. The dedicated astronomy filters for deep-sky imaging can effectively eliminate the influence from the background light and enhance the contract of your photographs and make the targets displayed more clearly and delicately. Askar’ s new-launched 6nm deep-sky Duo-narrowband Filter set colour Magic is a professional astrophotography tool specifically designed for deep-sky imaging.

This 6nm filter set has a narrow bandwidth. Therefore, even if your are at an area affected by the urban light pollution, night glow and other undesired light, you can capture high-quality deep-sky pictures with the help of Askar 6nm Duo-narrowband Filters. The narrower bandwidth and efficient light transmission considerably enhance the contrast of your pictures, making it easier to display the details of the stars that otherwise are fairly difficult to spot.

At the same time, the Colour Magic 6nm deep-sky Duo-narrowband Filter has very good halation control, providing more contribution to your astrophotography.

Colour Magic 6nm Duo-narrowband Filter (OIII & SII)

While most of the commercially available duo-narrowband filters for deep-sky astrophotography are in the Ha and OIII bands, ASKAR offers another structure: SII & OIII.

When shooting deep-sky galaxies with colour cameras, a duo-narrowband filter in the Ha and OIII bands is often used; whereas with a mono camera, a narrowband filter in the Ha, SII and OIII bands is often used, leaving users with colour cameras missing one band of nebula detail. This can be compensated by using SII and OIII duo-narrowband filters mentioned above.

Askar 6nm Duo-narrowband Filter (OIII & SII) has an ultra-high transmittance over 90% at its center wavelength (500.7nm and 671nm). Askar 6nm Duo-narrowband Filter (OIII & SII) can effectively eliminate the influence of light pollution. Even if you are in an area seriously affected by light pollution, the pictures taken with the Askar 6nm Duo-narrowband Filter (OIII & SII) are still very good. It is so practical and efficient that you can get astronomical images of high quality with just one duo-narrowband filter and an ordinary astronomical colour camera.

Askar 6nm Duo-narrowband Filter (OIII & SII) is ideal for photographing emission nebulae, planetary nebulae or supernova remnants, and has a very high transmittance at the central wavelength. The highly narrow bandwidth of the filter effectively blocks out the effects of light pollution or other distracting factors such as night glow.

6nm Duo-narrowband Filter (OIII & SII) 2”
FWHM: 6nm
CWL: 500.7nm & 671nm
Peak transmittance:90%
Thickness:1.85 ± 0.05mm
Barrier property:=OD5 @ 200-1100nm
Surface finish:60/40
Parallelism:30”

ASKAR Multifunctional Filter Drawer

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Askar Color Magic Duo-Narrowband 6nm "D1" H-a & O-III Imaging Filter - 2" Mounted

$379.99

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Askar Colour Magic 6nm Deep-sky Duo Narrowband Filter (OIII+SII)

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