Click to expand Tap to zoom Baader Narrowband Filter Set (Ha/OIII/SII) - 2" by Baader Planetarium Save $-732.00 $732.00 SKU FNSET3-2 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart
Includes Hydrogen-Alpha 7nm, Oxygen-III 8.5nm, and Sulfur-II 8nm narrowband filters in mounted 2" size.