41FDEVZYQML. SL160 Orion Collimating Telescope Eyepiece
Orion Collimating Telescope Eyepiece
Product Description
To get the best images from your telescope, its optics must be in precise alignment. This economical tool will ensure that they are. It's a combination sight tube and Cheshire eyepiece, consisting of a 5"-long tube made of black-anodized aluminum. It fits in a 1.25" eyepiece holder. A peephole in the top and wire crosshairs at the bottom enable precise centering of Newtonian optical components. The polished 45-deg internal surface projects an annulus of light into the optical path to facilitate primary mirror alignment. Simply insert the Collimating Eyepiece in the focuser drawtube and follow normal collimation steps. Your Newtonian will always be in excellent optical alignment! Instructions included.
Orion Collimating Telescope Eyepiece

 

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