Guys,
I had to split the topic due to the too many discussions about what collimation is and how it works. If you want to see it, check the Ground School board. Some unrelated posts were removed. If you want to repost them where they belong, please do so.
As for this thread, please DO NOT USE IT TO ASK QUESTIONS whose place is in the Help, Hints&Tips or Ground School boards.
Thanks,
/Admin