ZWO 2" Ha SII OIII 7nm Filter Set - NB7NMD2 Smartphone Dedicated Telescopes Thanks to it’s flexibility

Thanks to it’s flexibility

This model comes with a

Once connected to the mount

Distance from the 2" adapter to the focal plane with the focuser barrel retracted

ZWO 2" Ha SII OIII 7nm Filter Set - NB7NMD2 Smartphone Dedicated Telescopes Thanks to it’s flexibility2" SHO 7nm Filter Set This filter set includes the ZWO 7nm Ha, SII & OIII filters that are compatible with 2" filter wheels or filter drawers. Here's more information on each of the filters, all of which come in their own plastic storage case. OIII The ZWO narrowband OIII 7nm filter is designed for nebula observation by allowing a 7nm bandwidth of light to be centered on a wavelength of 500nm (which corresponds to OIII emission lines), and blocking