Chroma SII 8nm Narrow Band Filter
SII filters isolate the emission from ionized Sulfur atoms, also common in nebulae.
Emission is at two lines occurring as a doublet, at 671.6 and 673.1 nm.
- T: >=email@example.com, BW=7.7nm nominal
Please Contact Bernard at Modern Astronomy for Availability and Lead times.
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