Antlia produces high quality LRGB, narrowband and planetary filters for astrophotography with monochrome CCD and CMOS cameras. The strict manufacturing process and the quality control guarantees a tight tolerance of the filter thickness (± 0.05mm) which makes these filters parfocal. This allows the filter change without the need to refocus.
Each filter is fully multi-coated to minimise internal reflections, halos around stars and to assure a high transmission which is above 90%. To even further enhance the contrast, reduce the glare and internal reflections, Antlia applies edge-blackening coating on each filter.Antlia filters are available in 1.25" and 2" mounted or 31mm, 36mm and 50mm unmounted varieties.