Hey, I have a CFW-10 filter wheel with a ST-10xme camera. The filter wheel is attached to the camera by replacing the window- as opposed to the nose block. The filter wheel is off axis. When a filter is rotated infront of the camera - instead of a blank - the image on the camera appears out-of-focus. More than just the typical doughnut, one side of the doughnut is bright, the other side is dark, and intensity varies between the opposite points. I am certain this is due to the filter being off axis from the camera-telescope optical system. Is there a procedure for re-positioning the filter wheel? Thanks, Beyer
Dear Beyer, I am not sure what you mean. a blank vs a slot will a filter will always have a difference in focus. This is normal. Are you saying one of the filters could be tilted? If you can upload an image so I can see it would help. Scope collimation being off can sure change the brightness of the rings. Can you explain further or show a pic. Thanks Tim