Sky-watcher O-III Narrow Band Filter for Astronomy Telescopes 1.25" #20194
Brand New UK Stock, boxed with full Guarantee
The O-III narrowband filter is specially designed for the observation of gas and planetary nebulae.
It distinguishes different contrasts of the wavelengths of light that pass through, giving ideal conditions for the observation of faint super nova remnants and planetary remnants.
The O-III narrow band-pass filter isolates just the two doubly ionized oxygen lines (496 and 501nm) emitted by diffuse, planetary and extremely faint nebulae. O-III filters work ideally with larger aperture telescopes in the 200mm and larger range. With larger aperture telescopes, observers will have a better opportunity to identify nebulae objects in the deep sky. It can produce near-photographic views of the Veil, Ring, Dumbbell, Orion, plus many other nebulae under dark skies. These Available in two sizes, threaded to fit either standard 1.25” or 2” astronomical eyepieces. Supplied with storage case.
Specially designed for the observation of gas and planetary nebulae
An easy and low cost way to identify nebulae objects in the deep sky
Works ideally with larger aperture telescopes in the 200mm and larger range
Differentiate different contrasts of the wavelengths of light that pass through
Supplied with durable storage case for safe storage and comfortable transportation
Also can produce near-photographic views of the Veil, Ring, Dumbbell, Orion, plus many other nebulae under dark skies
Well suited to use for the observation of faint super nova remnants and planetary remnants
Isolates just the two doubly ionized oxygen lines (496 and 501nm) emitted by diffuse, planetary and extremely faint nebulae
