Filter · MSRP $78
Optolong OIII 18nm 1.25"
Key specifications
| Filter type | Narrowband |
|---|---|
| Passband | OIII 500 nm |
| Bandwidth | 18 nm |
| Filter size | 1.25" |
| Mounted | Yes |
About
18 nm OIII narrowband visual filter centered on 500 nm for emission and planetary nebulae and supernova remnants, including bright nebulae under light pollution; 1.25-inch mounted.