ALFSLNS1

FSLNSET-1

Alpine Astronomical

This Baader SLOAN/SDSS ugriz' Filterset, from Alpine Astronomical, includes all six (u', g', r', i', z-s', and y') SLOAN/SDSS bandpass filters.None Reflex-Blocker coatings offer largest ever freedom from halos, even under most adverse conditions concerning aux-opticsIdentical filter thickness to existing standards (2mm), with utmost care for parfocalityBlackened edges all around, with filter-lead-side-indicator in the form of a black frontside outer rim, to additionally eliminate any reflection due to light falling onto the edge of a filterEach filter coated individually, with sealed coating edge (not cut out of a larger plate with coatings left exposed)Life-Coat: evermore hard coatings to enable a non-aging coating for life - even in a most adverse environment