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Essential for Quick, Precise Optical Collimation
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° 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.
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