Filter · MSRP $490
Antlia 3nm Narrowband H-alpha (Ha) Pro Filter - 50mm Unmounted
Key specifications
| Filter type | Narrowband |
|---|---|
| Passband | H-alpha 656.3nm |
| Bandwidth | 3 nm |
| Filter size | 50mm |
| Mounted | No |
About
A 3nm FWHM H-alpha narrowband filter on a single Schott substrate, rated for >88% transmission at 656.3nm and OD5 out-of-band blocking, usable on systems as fast as f/3.