ZWO 2" SII 7nm Narrowband Filter - SII7NMD2 85mm Refractors Applying the experience of the

Applying the experience of the TeleVue Telescope Eyepiece Radian development to the 82 degree Nagler series

Relative Brightness: 12

With its advanced optics and user-friendly design

7" between the 8061A carbon fiber tripod (sold separately) and the 31 or 45 Strain Wave Alt-Az mount to allow for longer refractors to be used without hitting the tripod

ZWO 2" SII 7nm Narrowband Filter - SII7NMD2 85mm Refractors Applying the experience of theThe ZWO SII 7nm Narrowband Filter passes light at the 672nm wavelength with a bandpass of 7nm for nebula observation. It is suitable for visual observation on most emission nebulae, planetary nebulae and supernova remnants. Use this SII (Sulfur II) with H alpha and Oxygen III narrowband filters (SHO Set) for tricolor CCD astrophotography. This rendition of the ZWO SII 7nm Filter is housed in a 2" threaded metal cell and can be used in 2" filter wheels