Filter · MSRP $175
Optolong H-Alpha 7nm 1.25"
Key specifications
| Filter type | Narrowband |
|---|---|
| Passband | Ha 656 nm |
| Bandwidth | 7 nm |
| Filter size | 1.25" |
| Mounted | Yes |
About
Improved-version 7 nm H-alpha narrowband imaging filter centered on 656 nm, blocking light pollution and skyglow for high-contrast nebula imaging and SHO sets; 1.25-inch mounted.