The power of Tri-Bahtinov Masks :)
21:23
Collimation on a Star - Star Test
17:26
Sharper stars through better Collimation
25:47
la construction ultime du drone 6s 2 5 pouces
30:40
The BEST mount you've NEVER heard of! The Polar Alignment is 💯! Emcan Astro EM31Pro
8:45
Je sais ce qui est arrivé à la vente aux enchères Meade / Coronado / Orion ! 👀
37:29
The ULTIMATE DIY 3D Printed Telescope for Astrophotography
14:58
I Tried Starting A 3D Printing Business In 7 Days
17:55