Colour Magic Super D1 Duo Narrowband Filter (OIII&Ha)
Category： Askar
Askar 6nm Duo-narrowband Filter (OIII & Ha) has an ultra-high transmittance over 90% at its center wavelength (500.7nm and 656.3nm). Askar 6nm Duo-narrowband Filter 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 are still very good. You can get astronomical images of high quality with just one duo-narrowband filter and an ordinary astronomical colour camera.
leave a message now >Product introduction
Askar 6nm Duo-narrowband Filter (OIII & Ha) has an ultra-high transmittance over 90% at its center wavelength (500.7nm and 656.3nm). Askar 6nm Duo-narrowband Filter 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 are still very good. 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 & Ha) 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.
Specifications
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6nm Duo-narrowband Filter (OIII & Ha) 2” |
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FWHM |
6nm |
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CWL |
500.7nm & 656.3nm |
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Peak transmittance |
90% |
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Thickness |
1.85 ± 0.05mm |
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Barrier property |
≥OD5 @ 200-1100nm |
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Surface finish |
60/40 |
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Parallelism |
30” |
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