Astrophotography: Optolong L-Ultimate Review!
14:22
Optolong L-Ultimate en 31.75mm - Test complet et conseils d'utilisation
22:37
4 Months of Astrophotography
41:13
Celestron AVX review!
35:15
Astrophotography: 66 hours of Ha, Oiii & LRGB on the Triangulum Galaxy!
15:56
Comparing Telescopes - Refractor VS RC
18:27
HOO or SHO? Using the Antlia Hb-SII Dual Band Filter for OSC Cameras
14:17
Optolong L-Ultimate Review: REVOLUTIONARY!
21:19