Filter · 2021–
Optolong SII 3nm 2"
Key specifications
| Filter type | Narrowband |
|---|---|
| Passband | SII 672 nm |
| Bandwidth | 3 nm |
| Filter size | 2" |
| Mounted | Yes |
About
3 nm SII narrowband imaging filter centered on 672 nm, part of the SHO-3nm kit; 2-inch mounted.
Filter · 2021–
| Filter type | Narrowband |
|---|---|
| Passband | SII 672 nm |
| Bandwidth | 3 nm |
| Filter size | 2" |
| Mounted | Yes |
3 nm SII narrowband imaging filter centered on 672 nm, part of the SHO-3nm kit; 2-inch mounted.