Quote:
Originally Posted by xelasnave
Thank you Ray. I signed in on my phone and took a he opportunity of looking at the be image and notice if you dont hold the phone perfect the stars are oval.
I could not figure how 8 second subs would have a PA issue so I was secretly worried that I had a tilt issue...anyways another happy ending for me..I am just so very lucky.
Alex
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Alex,
As your probably aware the 2600MC had the thermal pad grease smear issue over the sensor ( I think the 2600MM to a lesser degree ) for cameras built between July 2020 to January 2021 ( Obviously a ZWO QC error on the production line ) I was one of the unlucky owners. My camera was sent back to my supplier for rectification and was returned to me in 10 days , quick turn around for which I was thankful. The next imaging night I noticed my stars were slanted or slightly eggy so checked all the normal things like PA , coma corrector etc... found out that the tilt plate wasn’t even all the way around ( obviously the repairer didn’t check it during re assembly )
As I didn’t possess feeler gauges so I used the corner of an A4 sheet of paper and carefully adjusted and tightened the tilt plate screws until I could just slip the paper gently back and forth.
Anyway long short it worked and my stars were round again ( with exception of some coma in the corners which I fixed later )
The tilt plate on the 2600MC and 2600MM can be an unexpected source of problems in regard to your Star field.
Just thought I’d share
Cheers
Martin