Filter · MSRP $55
Optolong UHC 1.25"
Key specifications
| Filter type | Light Pollution |
|---|---|
| Filter size | 1.25" |
| Mounted | Yes |
About
Ultra High Contrast light pollution filter with a narrower passband than CLS, blocking mercury and sodium lamp lines while passing the main nebula emission lines; for visual and imaging use under urban skies. 1.25-inch mounted.