Problem with my ZWO 174MM and Coronado solar telescope

shadowchaser

Hello everyone! I have a Coronado Solarmax II 60 BF5 telescope and a ZWO174 MM camera, it is the first time I use this type of cameras, so everything is new to me. I try shooting the sun using SharpCap and Fire Capture, but big dark bands appear on the image, I used a Televue Powermate 2.5X. How do I solve this problem?

Thank you very much!!

einari

They are called Newton rings and the usual solution is to use tilt adapter.

Some use flats to cure problem but I never had luck using them.

merlin66

I get the same newton rings with my SM60/ED80/ ASI174MM solar set up.

The T2 tilter works very well for me - removes all the banding.