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Celestron Collimation Eyepiece 1.25"
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- Celestron Collimation Eyepiece - 1-1/4'' - 94182
- Ideal for precise collimation of Newtonians
- Special eyepiece fits into 1¼" focusers or diagonals.
- Alignment is easy
- Collimation eyepiece is more accurate than the simple Collimation Tool
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Celestron Collimation Eyepiece - 1-1/4'' - 94182 Ideal for precise collimation of Newtonians Special eyepiece fits into 11/4 focusers or diagonals. Alignment is easy Collimation eyepiece is more accurate than the simple Collimation Tool
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Insert it where you would normally place your 9mm or 25mm lens. Turn the opening towards a light source, then just look into the end (like you would as if it were a regular lens. You'll see your secondary and primary lens and can adjust them from there.
Good luck on figuring out where those are too. I have the Celestron 130 and was pleased to find I only needed to slightly adjust the 3 large, easy to reach and turn, hand screws on the bottom of the scope.
It might not be laser precision but it's more than enough for my reflector. I'm very satisfied with it.
You will need an external light source so collimation with this unit has to take place during daylight hours (outside) or in a well lighted room (indoors).
I strongly suggest the use of a white piece of paper be inserted just inside of your Newtonian scope so that the body of the secondary mirror is obvious while sighting through the collimator.
This collimator is sturdy not to mention heavy for such a small item. But that's easily explained by the fact that it is made entirely of some sort of non-aluminum metal.
Reliable, and no batteries to fuss with. Unlike those laser collimators you don't have to worry about some kid playing with them and damaging their eye permanently.
With a little bit of practice, you will be an expert and aligning the mirrors in your reflector with old reliable here.