Filter · MSRP $159
Optolong SII 6.5nm 1.25"
Key specifications
| Filter type | Narrowband |
|---|---|
| Passband | SII 672 nm |
| Bandwidth | 6.5 nm |
| Filter size | 1.25" |
| Mounted | Yes |
About
Improved-version 6.5 nm SII narrowband imaging filter centered on 672 nm, blocking light pollution and skyglow for nebula imaging and SHO sets; 1.25-inch mounted.