專業SDSS Filters / u, g, r, i, z-band廠商

Notice : Due to the serious quality problem in colored glass, it is probable to use alternative glass instead of the original filter prescription.

SDSS(Sloan Digital Sky Survey) photometric systems are currently the most common, important and unignorable in astronomy.
We proudly supplied SDSS 2.5m telescope at Apache Point Observatory with original SDSS filters, where they have been used as the basis of SDSS photometric systems.

We know the specifications SDSS project defined, and strictly observe them. We promise that we will supply genuine SDSS filters which completely meet the original specifications for you.