Quote:
Originally Posted by Placidus
Sharpness, colour, and contrast in the nebulosity are superb.
Wouldn't worry about the image plane tilt - I can't see it myself.
The rings around the stars do need work.
Very best,
Mike
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Thanks Mike, totally agree on the stars. I think the best way is to reprocess the colour data again
Just realised that the visible tilt disappeared because of the meridian flip. This means that it isn't flexure as much as it is a repeatable error in the system. Not sure but it may be the compression ring on the rotatable focuser; tighten the knob to stop the rotation. May need to use a screw driver to equally tighten the focuser in place or at least heavily stiffen it.
Thought comes from my previous telescope which suffered from the same problem, the focuser tightening knob caused 0.1-0.2mm tilt. Who knows when the next clear night in Melbourne will be!
Quote:
Originally Posted by RickS
Very sharp indeed, Colin!
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Thanks Rick, think I need to play around with your colour mask script a lot more
