Thanks Merlin for your advise & encouragement.
I think the reason that I couldn't focus in the first place was I did not give the mirror enough time to cool down.(I was in a hurry to test my new toy
) The whole image "boils" unsteady so hard to focus. I am considering a round table platform for tracking. Is it really worth it? Almost everyone uses a 5x Powermate. Can I use two 2x barlows? Does it give me 4X ?
And IR filter in front of webcam is it neccessary? Sorry for all these questions.