IDAS LPS P2 31 mm unmounted filter for light pollution suppression in astrophotography. Best choice for mono CCD cameras.
Light pollution suppression (LPS) filters are designed to suppress the common emission lines generated by artificial lighting, yet allow the important nebula emission lines to pass, thus enhancing the contrast of astronomical objects, particularly emission nebulae.
Unlike other light pollution suppression filters, IDAS filters are specifically designed for balanced color transmission using the IDAS unique Multi-Bandpass Technology (MBT) process. The balanced transmission allows color photographs to be taken with minimal color cast to broadband emission objects such as stars, galaxies and globular clusters.
These Japanese-made IDAS P2 LPS is the best Light Pollution Suppression filter for astrophotography with mono CCD cameras. For colour CCD cameras or DSLR we suggest the newest Hutech IDAS LPS D1 filter that features a better colour balance.