Antlia H-beta and OIII Filter - 2"
Key specifications
| Filter type | Narrowband |
|---|---|
| Passband | H-beta 486.1nm + OIII 495.9/500.7nm |
| Filter size | 2" |
| Mounted | Yes |
About
An H-beta and OIII line filter for high-contrast visual nebula observing and deep-sky imaging, rated for >90% transmission at 486.1, 495.9 and 500.7nm with OD4 blocking from 300-1000nm.