How to attach a ZWO EAF to a Refractor (William Optics GT81)
Brief video on attaching the ZWO EAF to a Refractor Telescope (GT81 - William Optics) ZWO EAF https://www.firstlightoptics.com/zwo-... GT81 https://www.firstlightoptics.com/tele... Instagram Astropix74 music www.bensounds.com
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