Alpine Astronomical Baader SLOAN/SDSS u' Filter (36mm Round, Unmounted)

This Baader SLOAN/SDSS u' filter is designed for astronomical use and is part of the ugriz' bandpass filter set. It is suitable for use from f/15 to f/1.8 and offers transmission performance according to SLOAN specifications. The filter uses ion-beam coating technology and features a Reflex-Blocker hard coating, which has been planeoptically polished, and has Life-Coat sealed coating edges. It is compatible with both modern CMOS sensors and older CCD camera technologies.