Optolong OIII Filter 3nm 2"

Optolong OIII Filter 3nm 2"

Optolong 3nm OIII - Narrow band filter for astrophotography - Shooting with extreme contrast even with strong light pollution.

  • 2" mounted with filter mount
  • Suitable for telescopes and lenses with focal ratios of f/3 and lower
    Blackened edges to avoid internal reflections
  • Extremely narrow bandwidth of only 3 nm for maximum contrast
  • Central wavelength 501 nm
Manufacturer : Optolong
SKU : Ni-73722
Price: 455.00 € incl tax 19% (Germany)
Estimated delivery time : 3-4 weeks
Product description

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:

  • Filter
  • Filter box
Products specifications
Filter thread / size 2"
Full-Width-Half Maximum (FWHM) 3nm
Type Line Filter