Due to COVID-19 shipping times may vary ×
10%off

Svbony SV115 1.25 inch 18nm OIII Filter

SKU: F9186A
-10% US$ 49.49
List Price: US$ 54.99
  • 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
In Stock Out Of Stock

0 reviews

Write a review

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

1. Svbony narrowband OIII filter suitable for visual  observation on most emission nebulae, planetary nebulae and supermova surfaces

2. Suitable for viewing on bright nebulae like M42 Orion Nebula in heavy light pollution

3. Use with a large aperture telescope under clear and dark viewing conditions with good seeing

4. 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

Ask About This Product