Didn't go out tonight, since I don't think there would be much difference. I placed the mount on the other side of the window to gain access to M6 and M7... Just a test shot:
M6 on top and M7 near the bottom... very short exposure like 5s at ISO 800 since the polar alignment is very bad, and I couldn't improve it by much since the space is very limit on this side of the window. I even can't do the composition through the view finder.
Anyway, it's more like testing of the equipment, that Canon 100mm f/2.0 wide open.
A typhoon is coming, and I've taken a few more shots, pending processing (stacking).