4" APO Refractor Shootout
33:26
5" Refractor Shootout
34:57
4 Telescopes Tested: Doublet vs. Triplet vs. Quadruplet vs Quintuplet
24:52
What if all the world's biggest problems have the same solution?
18:02
Askar 103APO Review After Four Months
15:53
Can a 4” ED be everything you need?
40:55
$300 for a Telescope: Refractor or Reflector?
1:24:46
Tracker vs. No Tracker for ASTROPHOTOGRAPHY (Shooting the Pleiades)
39:16