M101 C11EdgeHD ASI294MCPro

[rodrigol]

This is my latest M101 after doing a lot of fiddling with N.I.N.A, which I'm quickly learning to appreciate (a lot). Focus was best (for me) for this DSO (much worse on others) but I got caught up with banding, which I can't figure out! One thing goes well and another goes funny. That's why I love this hobby (I guess!) 🙂 Can someone help?

 

60 x 60s Lights at -10C, Gain 120. Flats and darks from a library. The only thing recently changed are updated drivers from ZWO and New Beta from NINA (2008).

Thanks for watching!

 

Edited May 31, 2020 by rodrigol

[vlaiv]

New drivers usually require new set of calibration files.

 

[Knight of Clear Skies]

Looks like a calibration file problem to me. Failing that, Noel's actions for Photoshop (horizontal banding noise reduction) can remove most of it.

Further noise reduction would also help clean-up the background.

Edited June 1, 2020 by Knight of Clear Skies

[rodrigol]

Hi Guys! Thanks for the advise. Sorry for the delay in replying - working from home is much more intensive than anticipated. I will make a new calibration library. It make sense this being caused by changes in the drivers. But I also think there may be some spurious noise coming from the cables. So, I'll do a full refitting of everything. 

I've always had quite a noisy background with this camera but I don't think this is the camera itself but rather my setup. 

 

[rodrigol]

OK. So i managed to make a new calibration library and reprocessed the lights. I still got some banding but decided to try to use CanonBandingReduction (I guess it does the same as the Horizontal banding reduction in Carboni's actions for PS) and that did cleanup the image nicely. I've also done a bit of CT and NR with MLT and enhanced detail with LHT.  The jpeg look pretty awful...Still work in progress but I wanted to share what I managed so far regarding this issue and thank you again for your help!

 

 

[astroman001]

That's quite an improvement. Very good for 60x60s.

Peter

Edited June 5, 2020 by astroman001

[rodrigol]

After sorting out the automatic focusing I'm going to focus on trying to get >60s lights, aiming at doing 300s if the CGEM-DX allows it. It's my lockdown homework at the moment.

Edited June 5, 2020 by rodrigol

[alan potts]

Lots on good things one can say about it though nice detail coming through, I am sure someone will help with the other issues, I have had more than my fair share.

Alan

[MartinB]

While, whatever you have done seems to have worked pretty well!