Astrophotography - Calculating your Auto Focus Step Size
18:32
Celestron RASA Back Focus - How to Calculate Back Focus - What are my Options.
21:57
Stellarium - Custom Landscape, Knowing where your stars are.
26:17
APT User Guide - Auto Focus Aid
13:40
PHD2 trick for BETTER GUIDING! (Not multi-stars)
19:11
Sequence Generator Pro - Flat Frame Calibration Wizard
22:44
The Ins & Outs of Motorized Focusers
25:02
Astrophotography Guide Scope Setup and PHD2 Profile Creation
8:53