Collimating Ritchey Chretien Telescopes with the TSCOLLIT
21:16
TS-Optics Ritchey-Chretien Telescopes
26:49
TELESCOPIOS RITCHEY-CHRÉTIEN
55:58
¡PROFESORA ALEMANA DESENMASCARA LAS MENTIRAS SOBRE UCRANIA! - Conferencia de Gabriele Krone-Schmalz
12:58
The Simplest Way to Collimate a Ritchey Chrétien Telescope
19:32
First Light with my new Orion 8" Ritchey Chretien Astrograph Telescope
19:27
Cleaning the primary mirror of an 8" Ritchey-Chretien telescope
22:51
DREAM Telescope! - StellaLyra 10" Truss RC - In-Depth First Impressions! (+ collimation)
24:21