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Focus dial on the eye piece connecting to a telescope.
This is a photograph of a rack and pinion gear on a reflector telescope. Not sure of the name brand of the scope.
This is a rack-and pinion focuser on a relatively small Newtonian reflector telescope
Telescope eyepiece base
The gear portion of a Celestron FirstScope Telescope!!!
An adjustable focal eye piece for a reflector telescope.
Tt's a telescope. We can see the telescope eyepiece and the adjusting wheel.
It has to be a telescope but don't know which one it is.
Focus mechanism of reflector telescope...
what is, a focus dial on the eye piece of a telescope.
It is the focus adjuster on a reflector telescope. The eyepiece is connected to the upper end of that chrome section with the visible thumb screw.
Looks like the viewfinder that comes out of a telescope.
It looks like the viewfinder of a reflex telescope
Celestron FirstScope Telescope 21024 Reflector 76mm Tabletop Telescope
Eyepiece connector to a telescope. Note the words Hubble
view finder´s focus adjustment of a telescope.