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Hutech/IDAS Reflection Suppressed (RS) Color Filter Set


Hutech/IDAS RS (Reflection Suppression) technology filters are specifically designed to address the problem of internal reflections common in filtered CCD images when bright stars are present in the field of view (This problem is especially common in wide-field images). The IDAS RS filter set reduces surface reflections to less than 4% of conventional dichroic filters such as the IDAS Type II LRGB set as can be seen in the simulation examples below:
 

RS technology filter set simulation (Finger Lakes camera / no cover glass).
 

Conventional filter set (IDAS Type II LRGB) simulation (Finger Lakes camera / no cover glass).
 
 
The complete set includes 4 filters - luminance(L) and RGB components. An optional Cyan filter is available for OIII emission line nebulae imaging.
 
Two geometries are available which are suitable for even the large sensors available today - 50mm round and 50mm square. Estimated availability is the end of 2007.