[gregbradley]

I was using CCD Inspector a few weeks ago to collimate my CDK17.
It seemed fairly helpful except it was not totally clear in which direction to adjust the secondary as it shows a 3 knob secondary collimation setup whereas the Planewave has 4 knobs.

My question though is how reliable are measurements from CCD inspector?

If I got a result that seemed odd I would repeat taking a fresh image and measuring it. Sometime I got the same result other times it would be different.

So the bottom line seems to be use it as a guide and only on a night of good seeing.

Would it be best practice to then collimate with a high powered eyepiece on a night of good seeing?

Greg.