Filter · MSRP $499
Player One Astronomy Anti-Halo PRO Dual-Band 2" Ha+OIII
Key specifications
| Filter type | Narrowband |
|---|---|
| Passband | Ha 656.3 / OIII 500.7 nm |
| Filter size | 2" |
| Mounted | Yes |
About
Mounted 2-inch dual-band narrowband filter passing H-alpha (656.3 nm) and OIII (500.7 nm) in roughly 3-4 nm bands, designed specifically to suppress halos around bright stars, with at least 85% transmission and OD5 blocking.