Optolong L-Synergy filter 2" The L-Synergy is a dual 7 nm narrowband filter passing OIII (500.7 nm) and SII (672.4 nm) for colour cameras. Paired with an H-alpha/OIII filter such as the L-eXtreme, it lets colour-camera users build Hubble-palette (SHO) images. It is optimised against bright-star halos and suits systems of f/3.3 or slower.
Manufacturer model: Optolong L-Synergy 2" · Specifications checked against manufacturer data on 2026-11-03
The L-Synergy is a dual 7 nm narrowband filter passing OIII (500.7 nm) and SII (672.4 nm) for colour cameras. Paired with an H-alpha/OIII filter such as the L-eXtreme, it lets colour-camera users build Hubble-palette (SHO) images. It is optimised against bright-star halos and suits systems of f/3.3 or slower.
| Format | 2" mounted (M48 × 0.75) |
|---|---|
| FWHM | OIII 7 nm; SII 7 nm |
| Centre wavelengths | 500.7 nm; 672.4 nm |
| Suitable optics | f/3.3 or slower |
| Thread | M48 × 0.75 |
Multi-layer anti-reflection coating on a non-cemented substrate, applied by ion-assisted deposition for durability and a stable centre wavelength with temperature.
Optolong L-Synergy 2" mounted.
| Centre wavelengths | 500.7 nm; 672.4 nm |
|---|---|
| Suitable optics | f/3.3 or slower |
Ficha técnica
Optolong L-Synergy filter 2" The L-Synergy is a dual 7 nm narrowband filter passing OIII (500.7 nm) and SII (672.4 nm) for colour cameras. Paired with an H-alpha/OIII filter such as the L-eXtreme, it lets colour-camera users build Hubble-palette (SHO) images. It is optimised against bright-star halos and suits systems of f/3.3 or slower.
Manufacturer model: Optolong L-Synergy 2" · Specifications checked against manufacturer data on 2026-11-03
