GSTAR RGB-Filter Set with IR block 1.25 inch thread.
As new 1.25 inch thread Red, Green and Blue parfocal filter set for tri-colour CCD imaging with IR block filter, the red, green and blue filters have had the edge shaved a few thousands of an inch to enable smooth travel through a Lumicon filter holder. These sell for $99.00 at myAstroShop yours for $75.00 posted anywhere in Australia by Express Post.