Bands on stacked image

[Astrogaby]

Hi, anyone any idea what is causing these bands. 

[Cornelius Varley]

Could you provide a bit more information about the equipment used etc

[PeterCPC]

Ditto.

Looks like a Bahtinov mask was left on in error - nah, too simple an answer.

Peter

[Ags]

Passing thin cloud?

[lensman57]

Stretch a single sub first and see if the pattern is there, then stretch the clibration subs one by one and if these are clean then strecth the master clibration frames. the pattern is there then it is to do with stacking .

A.G

[GuillermoBarrancos]

Passing thin cloud?

That is my first thought as well. As the angle of the banding is unusual to point it towards the camera.

[Leveye]

That's a new on me. I like the cloud theory but looking at stretched frames as mentioned above is the way to go. That and try a different stacking method. 

[Astrosurf]

Hmmm, odd. Let us know if you discover anything.

Do you have Photoshop? If so, try the GradientXTerminator plug-in. It might get rid of your banding.

Alexxx

[Astrogaby]

The equipment used was QS1 660 TAK 106 with focal reducer  and guided with Atik titan.

I am going to retake flats and see if i get some banding. With exact same optical train! The individual frames show banding when stretched using Pixinsight. Not as pronounced.

[Thalestris24]

Hi

If it's always there on all subs it could be electrical in nature i.e. earth loop, poor grounding, noisy switching PSU, usb cable picking up noise etc.

Louise

[Astrogaby]

i have heard that running camera and mount off same battery can give grounding problems. is this what you are refering too?

Louise

[Thalestris24]

i have heard that running camera and mount off same battery can give grounding problems. is this what you are refering too?

Louise

Hi

Not specifically - just that unusual patterns in images could possibly have an electrical origin.  I have no idea if this is the case here, it's just a suggestion. I hope you can trace the source of your problem.

Cheers

Louise

[Alien 13]

Fitting ferrite suppressors (the type you often find on plug in mains adaptors) to each lead and grounding the mount is allways good practice and may help if the problem is electrical interference.

Alan

[Astrogaby]

Well QSI are recalling some cameras with this Sony sensor in them. My bad luck mine was one of them. Their post sale service is excellent they are offering  to pick it up and return it via UPS at their expense. So no complaints.

[Thalestris24]

Well QSI are recalling some cameras with this Sony sensor in them. My bad luck mine was one of them. Their post sale service is excellent they are offering  to pick it up and return it via UPS at their expense. So no complaints.

Hi

That's annoying. I hope they have a quick turnaround.

Louise

[lensman57]

Well QSI are recalling some cameras with this Sony sensor in them. My bad luck mine was one of them. Their post sale service is excellent they are offering  to pick it up and return it via UPS at their expense. So no complaints.

At least they have had the decency of instigating the right action and not try and fob you off with mind boggling  excuses, good luck.

A.G