ZWO 31 mm SII Filter - 7nm

ITEM #
ZWO-SII7-31MM
  • Designed for Nebulae Observation.
  • Passes Light at 672nm Wavelength with a Bandpass of 7nm.
  • Use it with H-alpha, and Oiii Narrowband Filters for Tricolor CCD Astrophotography.
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  • Regular price $149.00

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ZWO 31 mm SII Filter - 7nm

The Sii Narrowband filter transmits only Sulfur-ii wavelength light, which is found in most nebulae, star clusters, galaxies, and stars. This makes these filters ideal for complex false color imaging of such regions. Sii filters such as this one are excellent for boosting contrast and are most definitely a must-have for imaging in areas with high levels of light pollution. This particular Sii filter has a bandwidth of 7nm.

SPECIFICATIONS

Filter TypeSII
Free ShippingYes
ManufacturerZWO

Customer Reviews

4 Based on 1 Reviews
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Filter Reviews:
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01/16/2020
Anonymous
United States United States

Significant improvement on original NB filters.

Tested these on IC434 and Alnitak. The original filters had a pronounce halo.These replaced the halo with a much less obvious grid of dots.