How to Collimate a Newtonian Telescope │ astrobiscuit tutorial

This is a guide to Collimating Newtonian Telescopes in the daytime using a collimation cap, a Cheshire eyepiece and a laser collimator (I also run through collimating the laser collimator!). I personally use a collimation cap followed by a collimated laser collimator for my daytime collimation. This basic tutorial is all you need to get great collimation of your newtonian or dobsonian telescope. In my follow up tutorial I run though more advanced topics such as how to check if your telescope is mechanically sound as well as running through night time collimation using the stars. For £3 you can become a patron and access the full 40 minute advanced tutorial here: https://www.patreon.com/posts/85519443 Recommended Laser Collimator: UK: https://www.firstlightoptics.com/other-collimation-tools/astro-essentials-125-laser-collimator/ref/astrobiscuit US: https://bit.ly/3CY6Fnb EU: https://www.astroshop.eu/laser-pointers/bresser-laser-pointers-1-25-/p,44687?affiliate_id=astrobiscuit 00:00 Start 01:52 Collimation theory 04:20 How to adjust the secondary mirror 07:23 How to use a collimation cap 09:25 How to collimate with a Cheshire eyepiece 12:55 How to collimate a laser collimator 15:00 Quick collimation with a laser collimator the advanced collimation video for Patrons features these additional How to check if your focuser is pointing straight Why does the secondary mirror need to be offset? How to check the secondary mirror is in the correct position How to check if the weight of your camera is causing your telescope to flex 30:49 Star collimation