4 Telescopes Tested: Doublet vs. Triplet vs. Quadruplet vs Quintuplet
22:29
Can a telescope be too big?
43:23
4" APO Refractor Shootout
33:05
Amateur Astronomer vs Hubble Telescope (and WHY it makes NO SENSE!)
51:26
What's Up? Webcast: Picking a Refractor for Visual
9:22
30" Thompson Reflecting Telescope - Dome A
13:59
What Makes a Great Planetary Telescope? 6 Scopes Put to the Test!
41:46
4 Telescopes Tested from $300 to $2300
42:43