My personal preferences for Newtonian collimation are both a Cheshire and a laser collimator. And if you’re collimating a 2″ focuser, I strongly recommend using a 2″ laser collimator. A 1¼ ...

Learn how to optimize a budget Newtonian telescope for astrophotography with collimation tips and more. Justice Department says Trump can abolish national monuments All Five John Wick Movies ...

The Celestron Astromaster 70AZ Newtonian reflector is an extremely popular budget telescope thanks to its ideal balance of features, size, and price.