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Distance from the 2" adapter to the focal plane with the focuser barrel retracted
Once connected to the mount
or migrating whales just off the coast of California
this portable telescope boasts big views and is the perfect camping companion for your dark sky getaways
Expect exceptional quality and value versus a comparably priced Plossl
ZWO 2" Ha SII OIII 7nm Filter Set - NB7NMD2 Smartphone Dedicated Telescopes Distance from the 2" adapter2" 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
