Optolong OIII Filter 3nm 2"
The narrowband O-III 3nm filter is designed for nebula observation allowing 3nm bandwidth of light centered on a wavelength of 500nm through, which corresponds to OIII emission lines, blocking out all other light.
Scope of delivery:
Products specifications
| Filter thread / size | 2" |
| Full-Width-Half Maximum (FWHM) | 3nm |
| Type | Line Filter |
