Filter · MSRP $390
Antlia ALP-T Dual Band 3nm SII&OIII Filter - 2" Mounted
Key specifications
| Filter type | Narrowband |
|---|---|
| Passband | SII 672.4nm + OIII 500.7nm |
| Bandwidth | 3 nm |
| Filter size | 2" |
| Mounted | Yes |
About
A dual narrowband filter passing SII 672.4nm and OIII 500.7nm at a 3nm FWHM, built mainly for color cameras to make false-color narrowband images, with OD4.5 blocking; best on optics slower than f/4.