|
Dennis, it looks like it is difficult to do a typical occulting bar as the image is only focused once at the CCD surface. Two things I would try is to cut out a half circle of blue gel( from stage lighting suppliers) and mount this on the end of the adaptor that goes into the camera.
This will give a half filtered image that should give unfiltered moons on what ever side of the image that is selected.A few tiny bits of bluetak will hold it in place.One other is to use a half circle of aluminium foil carefully blackened with flat black spray.
|