Nebula Filter S-II 2-inch 12nm
Special Features
- Absorbs all other emission lines
- Absorbs almost all of the artificial light
- Passband bandwidth: 12 nm
- For observing faint planetary nebulae, emission nebulae and supernova remnants
- More contrast and details for all urban observers and astrophotographers
- An individual test report of this premium filter is included
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