Beginner Imaging Artifact: Help!

I am using a fairly new IS DFK 31AU03.AS USB Color camera just purcahsed off Astromart. I have a distinct artifact [appears to be a dispersion pattern] that I can not get around. I am using a TV 102, with a 60 mm Solarmax. When I use my cheapo Orion Solar System Imager it is not present.

If any one recognizes it, would appreciate advice how to get rid of it.

Attached Image:

You have to make a flat by shooting a short number of frames towards the center of the sun, slightly out of focus so that sunspots are not in focus and the whole image area is fairly evenly illuminated. Stack this and save it as a flat, hen divide the image by the flat using software. If you you the most recent registax, it has a facility for doing this. Check out registax for more on it.

It's a Fresnel pattern or Newton Rings. Happens with some camera's when imaging in H-alpha. May be due to the reflections building up between the etalons. They're a real beast to deal with and you probably won't be able to get rid of them with that camera. Image many subs and let the mount drift a bit. When processing the image the software will cancel the pattern out. A flat will not help. Martin