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research-grade hydrogen alpha filter
screw the drawtube to this plate
and an affordable all-in-one single product for passive dew fighting
Wedged for off axis SCT use
SkyBT Wireless Telescope Controller Set research-grade hydrogen alpha filterThis product is no longer available. Please see the SkyFi replacement for android wireless telescope control! SkyBT Wireless Telescope Controller for Android SkyBT is fantastic wireless solution for telescope control via bluetooth with SkySafari for Android. Plug it in and go! Smaller than your credit card, the SkyBT easily attaches to your RS232 ports via a DB9 connector. After you pair your Android with SkyBT and tapping "connect" in SkySafari,