Ocal Collimator with Edge HD8

[Bargy]

Hi,

I'm new to the Edge HD8 and have been struggling with collimation, focus and polar alignment. I think a lot of the issue is that I didn't have the reducer, so been trying to do everything at the native focal length (2032mm). Anyway, I have managed to get hold of a .7 reducer and I'm going through all steps logically.

Question I have first is - should I do the collimation with or without the imaging train? And also, which circles should I align the collimator to?

Here is an image of the Ocal camera with no focal train apart from the .7 reducer which is attached.

Here are the reference points I chose

This next one is after collimation - note that the crosshair on the camera seems central, but the mirror still seems a little off? Not sure if I should go by the mirror or by the camera crosshair.

 

 

Main questions then:

1) have I chosen the correct reference points (circles)
2) Should I fine tune to the cross hair or the primary mirror
3) Should I be collimating with just the reducer or the whole image train which would be: Scope-Reducer-OAG-ZWO 21mm Filter draw-ASI2600MC

 

Many Thanks in advance.

 

Bargy

[Bargy]

Just to add to this - here is an image once I put the imaging train back on and attach the ocal again