Telescope Collimation Cap for 1.25" eye piece
Description
This Is A Collimation Cap For Visually Collimating Newtonian Reflectors With 1.25" Focusser Tube. You Only Need To Put This Cap On The Focussing Tube And Look Through The Tiny Pinhole. If The Centre Of The Primary Mirror Is Visible Dead Centre, You Should She Your Own Eye In It Which Means That Collimation Is Correct. Please Consult A Proper Guide Before Starting.
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