The new CCD is so powerful that all the defects of my setup have appeared! (collimation being one of them!). So, my current task is to fix all these defects, and also begin guiding. Yes, with guiding I should go up to 10 minutes (or more) of exposition with my subs. After working hard with guiding setup, I am now beginning to get my first outcome.
Here are two first examples. The Crescent Nebula and the Veil Nebula. It’s still a LONG way to go… but I know I’m going the right direction! Both of them consist of 10-minute subs.