How to avoid clumsy telescopes, including Bird Jones: https://astroimage.tistory.com/109
Here are a few things you should know before purchasing a reflector telescope and Dobsonian, which can achieve a large aperture compared to a refracting telescope for a similar price. It contains the precision of mirrors, products to avoid, optical axis alignment, coma and some things to consider when using them for astrophotography.
0:00 Intro
0:12 Establishing the concept of a reflecting telescope
1:10 The end of a company that puts telescope images in advertisements without the concept of a reflector telescope
2:06 This is a description of the precision of the mirror.
5:35 Reflective telescopes to avoid - Did you know Bird Jones?
7:49 This is a story about optical axis alignment that cannot be avoided with a reflecting telescope.
9:13 Refer to when the telescope image does not form
9:51 Coma corrector (corrector) is a must if you are thinking about a reflecting telescope for photography
10:35 There are many things to prepare for a photographic reflector.
13:58 finish
As always, the content of the video is entirely based on my experience and knowledge, so there may be errors or inaccuracies. If you give us feedback in the comments, we will do our best to reflect it.
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