Chroma Technology - 31mm Unmounted SII 8nm Narrowband Filter

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Availability: More on the way - Although this item is temporarily on Back order, you can order it now and it will ship as soon as it arrives. Your card will only be charged once item is shipped.

The Chroma Technology SII filters isolate ionized emission lines at 671.6nm and 673.1nm. These are common in nebulae.

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