| Brand | OPTOLONG |
|---|---|
| Type | Filter |
| Size | 2.0 in |
Check the listing for details. OPTOLONG L-Para 2 Narrowband Filter 2'' 10nm Light Pollution Filter Astronomical. Condition: New. Listed at 172.90 USD. Anti halo feature: the process has undergone multiple optimizations and has been repeatedly tested and verified for six months. The anti halo effect is particularly significant, improving the shooting effect of bright stars.