ZWO 36mm SII Filter - 7nm

  • Sii Filter.
  • Great for Nebulae and Supernova Remnants.
  • 36 mm Round Filter - Mounted.
  • 7 nm Bandpass.
  • Passes Light at 672 nm Wavelength.


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  • Regular price $169.00

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ZWO 36mm SII Filter - 7nm

The ZWO 36 mm SII Filter - 7 nm:

This SII Narrowband filter transmits only Sulfur-ii wavelength light, which is found in most nebulae, star clusters, galaxies, and stars, making these filters ideal for complex false color imaging of such regions.

SII filters such as this are excellent for boosting contrast and are most definitely a must-have for imaging in areas with high levels of light pollution.

The ZWO narrowband S-II 7 nm filter passes light at 672 nm wavelength with a bandpass of 7 nm which is designed for nebula observation. It is suitable for visual observation on most emission nebulae, planetary nebulae and supernova remnants. Additionally, you can use it with H-alpha and OIII narrowband filters (SHO Set) for tricolor CCD astrophotography.

Both of the new SII and Ha filters from ZWO have a positive and negative side.  Telling the camera and telescope sides is very simple. Let the image below show you how!

ZWO 36mm SII Filter - 7nm-Camera side and Telescope side



Filter TypeSII
Free ShippingYes


  • ZWO 36 mm SII Filter - 7 nm.
  • Protective storage case.