ZWO SII 7nm Filter 31mm
Key specifications
| Filter type | Narrowband |
|---|---|
| Passband | SII 672nm |
| Bandwidth | 7 nm |
| Filter size | Other |
About
7 nm SII narrowband filter centred at 672 nm for emission, planetary nebulae and supernova remnants, used with Ha and OIII for SHO imaging; 31 mm round.