Hello from Russia! My name is Ruslan, I am the author of the black list of telescopes on the site star-hunter.ru. Thank you for your opinions on my article. Yes, the article of 2015, but I regularly add various models to the list.
I also want to say that the list is aimed at beginners who need a good telescope with a good image. Fast achromats are suitable for observing wide stellar fields, but the level of chromatism makes them not a good choice for observing planets. The main thing is that a person after reading this article which telescopes is undesirable to buy.
|