Can the MONO DUO Guide in Narrowband

>> YOUR LINK HERE: ___ http://youtube.com/watch?v=PnbA_mLIaeY



mono, duo, imx220, imx571, 2600mm duo, ZWO, 2600mm, tests, guiding, narrowband, 5nm, SHO, Hubble palete, filters, 7nm, duoband, dual band
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