I was interested to buy my first telescope, and here are my criteria:
- portable - I need to transport it to dark site and don’t want to spend 1 hour setup everything in the cold dark
- planertry vs deep dark - this is hard to tell, see moon or saturn will be excited for the first time, but what about the next
- budget - 200$ - 500$
Optical theory
Binoculars
Refractor
Reflector
Designed by Issac Newton in 18xx to solve one common problem in refractor.
NOTE Keep in mind that you need to calibrate the mirrors from time to time
