Collimation is the alignment of the optical elements to each other and the mechanical housing of the binoculars. Good collimation prevents eyestrain, headaches, inferior and double images while improving res]]> The proper alignment of the optical elements in a telescope. Collimation is critical for achieving optimum results. Poor collimation will result in optical aberrations and distorted images. Not only is the alignment of the optical eleme]]> Alignment of your secondary relative to the corrector plate and to the primary is important to the proper optical performance of your scope. There are two ali]]> Collimation is the proper alignment of the optical elements – lenses and mirrors - in your telescope. Collimation is important for getting the best out of your scope. Poor collimation will result in op]]> Collimation is the proper alignment of the optical elements – lenses and mirrors - in your telescope. Collimation is important for getting the best out of your scope. Poor collimation will result in op]]> Night Time Star Collimation

After successfully completing daytime collimation, night time star collimation can be don]]> Collimation is the proper alignment of the optical elements – lenses and mirrors - in your telescope. Collimation is important for getting the best out of your scope. Poor collimation will result in op]]> Collimation is the proper alignment of the optical elements – lenses and mirrors - in your telescope. Collimation is important for getting the best out of your scope. Poor collimation will result in op]]> Night Time Star Collimation

After successfully completing daytime collimation, night time star collimation can be don]]> Collimation is the proper alignment of the optical elements – lenses and mirrors - in your telescope. Collimation is important for getting the best out of your scope. Poor collimation will result in op]]> Night Time Star Collimation

After successfully completing daytime collimation, night time star collimation can be don]]> Collimation is the proper alignment of the optical elements – lenses and mirrors - in your telescope. Collimation is important for getting the best out of your scope. Poor collimation will result in op]]> Collimation is the proper alignment of the optical elements – lenses and mirrors - in your telescope. Collimation is important for getting the best out of your scope. Poor collimation will result in op]]> Night Time Star Collimation

After successfully completing daytime collimation, night time star collimation can be don]]> Collimation of a SCT is critical to getting the sharpest images possible, especially when viewing planets at high magnification.  There are three stages to a really goo]]> Collimation of a SCT is critical to getting the sharpest images possible, especially when viewing planets at high magnification.  There are three stages to a really goo]]> Collimation of a SCT is critical to getting the sharpest images possible, especially when viewing planets at high magnification.  There are three stages to a really goo]]> Collimation of a SCT is critical to getting the sharpest images possible, especially when viewing planets at high magnification.  There are three stages to a really goo]]> Collimation of a SCT is critical to getting the sharpest images possible, especially when viewing planets at high magnification.  There are three stages to a really goo]]> Collimation is the proper alignment of the optical elements – lenses and mirrors - in your telescope. Collimation is important for getting the best out of your scope. Poor collimation will result in op]]> Night Time Star Collimation

After successfully completing daytime collimation, night time star collimation can be don]]> Collimation is the proper alignment of the optical elements – lenses and mirrors - in your telescope. Collimation is important for getting the best out of your scope. Poor collimation will result in op]]> Collimation of a SCT is critical to getting the sharpest images possible, especially when viewing planets at high magnification.  There are three stages to a really goo]]> Precise collimation is essential to good performance for any Schmidt-Cassegrain telescope. For SCTs it’s done by small adjustments to the tilt and position of the secondary mirror in its cell. Celestro]]> Collimation is the alignment of the optical elements to each other and the mechanical housing of the scope. Good collimation prevents eyestrain, headaches and inferior images while improving resolution. It&r]]> The donut ring is used for collimation (alignment) of your reflecting telescope’s optics and doesn't interfere with scope operation, as it's in the shadow of the secondary mirror. It’s placed aro]]> If you can see the shadow of the secondary mirror (the black circle) and spider vanes in the eyepiece, the scope is not focused.

As you move the focuser, the image should get smaller until you re]]> Celestron’s SCTs have a trio of either button head Allen screws or Philips screws on the outside of the secondary mirror cell. These screws are used to collimate the scope by slightly changing the tilt]]> There are two sets of knurled slotted head screws. 

Three of these screws have heads ½” in diameter. These are the ]]> Collimating the new EdgeHD optical tube assembly is no more difficult than current Celestron Schmidt-Cassegrain telescopes (SCTs). It is the same procedure of adjusting the secondary. So if y]]> Collimation is the proper alignment of the optical elements – lenses and mirrors - in your telescope. Collimation is important for getting the best out of your scope. Poor collimation will result in op]]> Look on the back end of your scope, away from the eyepiece and down where the main mirror is located. The collimation screws are paired with l]]> Underneath the rear dust cover plate you will find six screws, three pairs each of Allen- and Philips-head screws.

Each type of scre]]> For newer Celestron Fastar-equipped SCTs, the alignment pin can be in any orientation. 

Older Celes]]> Orion Telescopes has a very good video illustrating the basic steps of collimating a Newtonian reflector.

There are several ways to do-it-yourself when it comes to collimating tools.

The easiest way is to just drill a 1/16” to 1/8” hole in the center of your ey]]> This collimator works best with four marks separated by 90° from one another.  When you have demounted in the optics from the tube, scribe or paint&nb]]>