Reply To: Filter defect(s)

Forums General Discussion Filter defect(s) Reply To: Filter defect(s)

Robin Leadbeater

The earlier Baader filters were conventional multilayered coloured glass filters which would explain the interference rings, with I believe a dielectric coating to block IR leaks (I have an old V filter from a different supplier which has delaminated on the edge.) The RGB and latest BVRI filters from Baader (and others) are now a single thickness of dielectric coated glass