The Askar Color Magic 6nm Duo-narrowband Filter (OIII & Ha) is an astronomy filter from Askar that follows the recent introduction of the company’s new Color Magic 3nm Narrowband Filters.
The new 2-inch dedicated astronomy filter has an ultra-high transmittance over 90% at the center wavelength (500.7nm and 656.3nm) and can effectively eliminate the influence from background light and enhance astro images.
The Askar Color Magic 6nm Duo-narrowband Filter specifications include:
– FWHM: 6nm
– CWL: 500.7nm & 656.3nm
– Peak transmittance: 90%
– Thickness: 1.85 ± 0.05mm
– Barrier property: ≥OD5 @ 200-1100nm
– Surface finish: 60/40
– Parallelism: 30”
You can learn more about the Askar Color Magic 6nm Duo-narrowband Filter here.
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