Player One Astronomy Ha 7nm Narrowband 2" Filter S-series
Key specifications
| Filter type | Narrowband |
|---|---|
| Passband | Ha |
| Bandwidth | 7 nm |
| Filter size | 2" |
| Mounted | Yes |
About
Mounted 2-inch H-alpha narrowband filter from Player One's S-series with 7 nm FWHM, about 90% transmission, OD3 blocking and 1/4-wave surface accuracy on a 2 mm glass substrate.