SVBONY SV115 1.25 inch OIII Filter Narrowband 18nm, Cuts Light Pollution 

• The 1.25 O-III filter useful for large aperture telescopes through which the light of the Moon can be extremely overwhelming. Allowing just for the Double Ionized Oxygen lines between 495.9nm to 500.7nm to pass through at 90%
• Astrophotographic;The filter enhances contrast during visual observation of gaseous and planetary nebulae in all sky conditions; 1.25 filter allows high-contrast imaging even in areas with strong light pollution
• The filter made from high-grade glass with dichroic interference and antireflection coatings;not only useful at light-polluted sites; the contrast is also increased at dark sky sites;it can be used with all 1.25 eyepieces
• The O-III filter completely blocks virtually all other visible wavelengths of light so views of nebulas are optimized;increases contrast through selective filtration-Anti-reflection coated to prevent glaring and ghosting
• Narrowband filter do not eliminate the effects of light pollution or increase the object’s brightness;in many cases, they increase the contrast between nebula and night sky, not brightening the nebula

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  • Svbony narrowband OIII filter suitable for visual  observation on most emission nebulae, planetary nebulae and supermova surfaces
  • Suitable for viewing on bright nebulae like M42 Orion Nebula in heavy light pollution
  • Use with a large aperture telescope under clear and dark viewing conditions with good seeing

  • Technical Specifications

    Model		F9186A
    Size		1.25 18nm O-III
    Blocking area		400-700nm
    Transmittance		90% at 495.9nm and 500.7nm
    FWHM		18±2nm
    Thickness		1.85mm
    Diameter		1.25 inch

     

    In the Box

    SVBONY SV115 OIII Filter Narrowband 1.25 inch 18nm

    Manuals & Warranty

    Svbony 1-Year Warranty 

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