Newton's rings

gordonewen

Sam, I wonder if you can advise on my problem with Newton's rings. When I use the camera at f12 on the Lunt 152 I get Newton's rings (seems to be ok at native focal length of f6). I have used both Autostakkert and AVIstack to process video's with flat field images and neither remove the rings; in fact they appear to be slightly worse when the flat is applied. I have also tried the tilt adjuster from Teleskop Service and have so far failed to make any difference to the rings (if the reflections are in the camera the tilt adjuster won't work anyway). I have attached an image showing the rings.

So far everything I have tried has failed; have you any thoughts as to what I might try to get rid of the rings?

REgards

Gordon

riklaunim

Only flat frame. Micron sensors are known for this - they just may give unremovable by tilting Newton rings and you can't do much about it.

Sam@ZWO

I don't have much experience myself

but seems the software and hardware solution works for others

I think maybe you just need more try