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Have a question? We'd love to help. Email: info@allstartelescope.com Call Us: (587) 336-6621 Toll Free: 1 (866) 310-8844

ZWO 1.25" SII 7nm Filter (ZWO-SII7NM1.25)

by ZWO
SKU ZWO-SII7NM1.25
Original price $167.70 - Original price $167.70
Original price
$167.70
$167.70 - $167.70
Current price $167.70

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Usually ready in 24 hours

Narrowband filter does not eliminate the effects of light pollution or increase the object’s brightness. In many cases, they increase the contrast between nebula and night sky, not brightening the nebula.

Description

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

It can reduce the transmission of certain wavelengths of light, specifically those produced by artificial light including mercury vapour, and both high and low pressure sodium vapour lights and the unwanted natural light caused by neutral oxygen emission in our atmosphere (i.e. skyglow).

Specifications

  • Name: ZWO New narrowband 1.25″ filter
  • Size: 1.25″
  • Thickness: 5.5mm+2.5mm(thread)
  • Glass thickness: 1.85mm
  • Thread: M28.5*0.6 male thread