ASI 1600 mm pro back ground image problem

simmo39

Hi I wonder if anyone can help me with this problem I have spoken to a few different people about it but they cant resolve it and think it is a camera problem. When taking recent exposures Im getting what i can only call swirls on the back ground. they apear to be the same shape with all filters and sub lenghts. Here is a RGB image which shows the problem.

https://www.flickr.com/photos/151226859@N02/49704386881/in/dateposted-public/

Thanks for any help

Andy

moson

Did you use flat field to calibrate the image?Try to calibrate it.

simmo39

Hi, yes full callibration done. I have done the image without callibration frames and it still the same.

moson

Maybe you could contact support.

simmo39

Hi Moson

I have contacted the support desk but I dont think they think that there is a problem. I did some more subs last night and will post the results soon.

moson

Ok, I'm looking forward to your results.