Filter · 2021–
Optolong OIII 3nm 2"
Key specifications
| Filter type | Narrowband |
|---|---|
| Passband | OIII 500 nm |
| Bandwidth | 3 nm |
| Filter size | 2" |
| Mounted | Yes |
About
3 nm OIII narrowband imaging filter centered on 500 nm with optimized halo coating, part of the SHO-3nm kit; 2-inch mounted.