Filter · MSRP $90
Optolong H-Beta 1.25"
Key specifications
| Filter type | Narrowband |
|---|---|
| Passband | Hb 486 nm |
| Bandwidth | 12 nm |
| Filter size | 1.25" |
| Mounted | Yes |
About
12 nm H-beta narrowband visual filter centered on 486 nm for large-aperture telescopes under dark skies, suited to faint targets like the Horsehead and California nebulae; 1.25-inch mounted.