Skywatcher Filter OIII Narrowband
The O-III narrowband filter is specially designed for the observation of gas andĀ planetary nebulae.
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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.
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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.
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O-III filters work ideally with larger aperture telescopes in the 200mm andĀ larger range.
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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.
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These OIII filters are available in two sizes, threaded to fit either standard 1.25ā or 2ā astronomical eyepieces.
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Ā
Supplied with storage case.Ā
Original: $71.50
-70%$71.50
$21.45Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The O-III narrowband filter is specially designed for the observation of gas andĀ planetary nebulae.
Ā
Ā
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.
Ā
Ā
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.
Ā
O-III filters work ideally with larger aperture telescopes in the 200mm andĀ larger range.
Ā
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.
Ā
Ā
These OIII filters are available in two sizes, threaded to fit either standard 1.25ā or 2ā astronomical eyepieces.
Ā
Ā
Supplied with storage case.Ā
