Universal 125 Inch Collimation Eyepiece with Cross Hair for Newtonian Telescopes for Celestron Orion Skywatcher Etc

Make your seeing experiance much better with this simple tool! Quickly and precisely align your Newtonian reflector telescope! Stars don't come to a pin point focus. Planets looks slightly hazy. Sometimes optics yield images that are less then perfect. To prevent this from happening, you'd better collimate your Newtonian telescope with a collimator. The 1.25" collimator is an excellent accessory. It can take some time getting used to aligning both the secondary and primary mirrors and this short collimator can make it much easier. The short collimator for mirror (reflector) telescopes has a 45 degree plate for easier visual accuracy.

Collimation is the alignment of elements inside an optical system like a telescope. Colimating a telescope consists of adjusting the tilt and position of the mirrors and lenses to ensure that the focal point reaches optimum focus at the point from which the image will be viewed (the eyepiece or possibly a camera).
Specifications:
Size: 1.25"
Weight: 3.3 oz
Package Include: 1
X Size: 1.25" Collimation EyepieceP.
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