This package includes a Moravian...
Hutech IDAS LPS D1 filter for Canon EOS APS-C DSLR light pollution suppression filter for astrophotography. D1 version has been designed to improve color balance on DSRL and One-shot colour CCD cameras.
Hutech IDAS LPS V4 filter for Canon EOS APS-C DSLR for astrophotography. The IDAS LPS V4 filter is designed to provide maximum contrast between key astronomical emission lines and a light polluted sky.