Types of Telescope Mirrors

[@TheAlienTechs]

Learn Basics of Telescopes here: 👉 kzbin.info/aero/PLxO7Ri9hh2HGfpx8KZ-rnzSr6_3h9wyim

[@robertsonsid]

You forgot to mention Bird-Jones type telescopes. They have a longer focal length and a spherical mirror.

[@ronm6585]

Thank you.

[@UpcomingJedi]

Cheap, Chinese spherical telescopes with plastic lenses are simply a waste of money.