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Chroma H-Alpha 3nm Filter

Chroma H-Alpha 3nm Filter

(1 customer review)

£485.00£1,250.00

Chroma H-Alpha 3nm Narrow Band Filter

Chroma H-Alpha 3nm Narrow Band Filters are essential for ultra high contrast images of nebulae under high levels of light pollution.

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Description

Chroma H-Alpha 3nm Narrow Band Filters are essential for ultra high contrast images of nebulae under high levels of light pollution.

At 656.3nm, a narrow-band emission filter is required to separate H-Alpha from the SII doublet (671.6nm and 673.1nm).

Wavelength (CWL): 656

Bandwidth (FWHM): 3

1 review

  1. Jonathan Bennink

    Fantastic filters, the absolute best out there. I got hooked on narrowband with my ZWO filters that came with my ASI1600MM, but these are in a league of their own. I upgraded to the 3nm Chroma set because I want to image during any moon and under Bortle 5 class skies and the results are breathtaking. With the Ha and Sii you can image during a full moon and with Oiii it’s best to wait for 60 % or less, depending on where your target is. NO internal reflections and nicely packaged with a good report and an extremely high transmission. If you spend 1500 pound on a scope + 1500 on a mount + 1500 on a camera, why use cheap filters?

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