Svbony OIII Filter 1.25″ [F9186A]

Svbony OIII Filter 1.25″ [F9186A]

Svbony Filter 1.25″ O-III Filter 18nm Filter Eyepiece Nebula and Light Pollution Filter for Telescopes (1.25 inches)
SKU : F9186A
Price: 67.00 € incl tax 19% (Germany)
Estimated delivery time : 1-2 weeks (valid for new orders)
Product description
  • The narrow-band OIII filter is designed for nebula observation and provides a light bandwidth of 18 nm, centred at a wavelength of 500 nm, which corresponds to the OIII emission lines. It also reduces the transmission of certain wavelengths of light, in particular those produced by artificial light—including mercury vapour and sodium vapour lamps—as well as the unwanted glow caused by neutral oxygen emission in our atmosphere.
  • Suitable for observing emission nebulae; gaseous and planetary nebulae; supernova remnants
  • The O-III filter is a special narrow-band filter that covers an even narrower wavelength range than the UHC filter, significantly improves contrast, and outperforms the UHC filter for all types of nebulae
  • The O-III filter, made from high-quality glass with dichroic interference and anti-reflective coatings, prevents glare and ghosting and enhances contrast in both bright and dark skies
  • The 1.25-inch O-III filter is particularly suitable for larger, high-aperture telescopes and all 1.25-inch accessories
Products specifications
Technical Data
ModelF9186A
Size1.25'' 18nm O-III
Blocking area400-700nm
Transmittance90% at 495.9nm and 500.7nm
FWHM18±2nm
Thickness1.85mm
Diameter1.25 inch