These rings came with the 4"celestron refractor. They have
two screws at the top - a threaded rod with a knob and the other is just an emplty threaded hole.
Does any one know what these are for ? cannot attach a camera
as the design forces the camera to turn instead of the knob
and can position at awkward angles serving no purpose.
two screws at the top - a threaded rod with a knob and the other is just an emplty threaded hole.
Does any one know what these are for ? cannot attach a camera
as the design forces the camera to turn instead of the knob
and can position at awkward angles serving no purpose.
