In article ,
"Mike Dworetsky" writes:
For safe operations, you should really unplug the dome shutter cable once it
is open,

Somewhat less obvious... if there's any possibility that the dome can
rotate, you should also unplug the shutter cable after the dome is
closed. I won't give details here, but you might recall the
definition of "expert."

--
Steve Willner Phone 617-495-7123
Cambridge, MA 02138 USA
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