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Jan 5, 2011 2 inch CATSEYE 'XLXP' Collimation Tools 1.25 inch CATSEYE Cheshire 2 inch to Mike for his continued sharing of his excellent tutorial pic-sequence gallery. To accurately collimate with this guide you will need a Cheshire collimator and a collimation cap. My own collimation cap is made from a focuser blanking cover Jul 31, 2006 The "tuning" of a telescope is known as collimation. You may have heard . The best tool for this procedure is a Cheshire eyepiece. Put it in the Aug 11, 2013 Nov 28, 2012 And if you're a telescope nut, collimation can be a form of tinkering. . a simple collimation cap, move up to a Cheshire eyepiece if you want. Dec 6, 2000 The following drawings show both a ray-trace of the telescope plus a view of what you would see while looking through the Cheshire eyepiece.tube" and a "Cheshire eyepiece." The sight tube portion of the Collimation eyepiece has cross hairs to accurately define the center of the optical axis, and is. Couple of tutorials on youtube : - 2 . cheshire collimation - YouTube . the reason for the collimation cap (rather than the cheshire) is that it Jun 6, 2015 Collimation is critical to obtaining the best performance from your telescope. There is a bit of an art to collimating a Newtonian. Once you have