Baader 6.5nm Narrowband 36mm CMOS optimized H-alpha-O-III-S-II Filter (UK Stock)

Baader 6.5nm Narrowband 36mm-CMOS optimized H-alpha-O-III-S-II Filter. 36 mm x 2 mm Baader H-alpha / O-III / S-II Narrowband Filter Set – Precision Grade. MANUFACTURER Baader Planetarium. TYPE OF FILTER Narrowband.

eBay