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ZWO SII 7 nm Filter - 31mm - SII7nmD31

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Item #ZWOA-SII7NMD31

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  • $149.00
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  • This ZWO 31mm Unmounted 7 nm Filter comes with a plastic filter container for protection between uses

  • When used in conjunction with the ZWO 31mm OIII and H-Alpha filters, this SII filter provides tri-color results similar to those produced by the Hubble Space Telescope

  • ZWO narrowband filters are fine-optical polished to reach a 1/4 wave accuracy

  • Features multiple anti-reflection coating layers for additional performance improvements
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  • Description

    ZWO 31mm SII 7 nm Filter

    You will be amazed by your telescope's astro-imaging capabilities with this 31 mm SII 7 nm Filter by ZWO! This filter allows you to take images that emulate those shot by the Hubble Space Telescope! All you have to do is couple the filter with an Oxygen III and Hydrogen-Alpha filter and you will be imaging like never before! Sulfur is in the deep red of the spectrum near 672 nm.

    The ZWO SII 7nm 31mm Filter is unmounted. ZWO narrowband filters are fine-optically polished to reach an accuracy of 1/4 wave. Their performance is further enhanced by multiple layers of anti-reflection coatings.

     

    Supplier SKU

    SII31

    What's Included

    • ZWO SII 7 nm Filter - 31mm

    • Plastic Filter Case

  • Dimensions & Specifications

    • Filter Size: 31mm

    • Filter Type: Narrowband Imaging - SII

    • Filter Shape: Round

    • Mounted/Unmounted: Unmounted


  • Product Guarantee

    We stand behind all the products we sell, and your satisfaction is our top priority. If you're not satisfied with the quality of your purchase, simply send the item back to us in its original packaging within 30 days of its delivery.

    Manufacturer Warranty

    2 years

    Return & Exchange Policy

    At our site, returns are easy! You may return new, unused, and resalable items for a refund or exchange. Simply ensure that the item is returned in its original product packaging within 30 days of delivery.

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