Who makes a better telescope? Sharpstar or William Optics?
11:38
The Decline of Visual Astronomy
13:59
What Makes a Great Planetary Telescope? 6 Scopes Put to the Test!
23:52
A BUDGET TAK?? Testing the Founder Optics FOT106 Refractor
11:08
A falha fatal do telescópio refrator Bresser 60/900 AZ
21:29
Astronomia e Natura. William Optics Zenithstar 61 MARK II APO (with english subtitles)
26:05
Radian 61 - The Most Annoying Telescope
34:57
4 Telescopes Tested: Doublet vs. Triplet vs. Quadruplet vs Quintuplet
30:24