Skywatcher Filter UHC Ultra High Contrast
The narrowband UHC filter, like the O-III filter, isolates the two doubly ionized oxygen lines (496 and 501nm) in addition to the hydrogen-beta line (486nm) emitted by planetary and most emission nebulae.
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This filter permits superb views of objects like the Orion, Lagoon, Swan and other extended nebulae.
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It performs well in smaller aperture instruments owing to its greater light transmission than the O-III, yet still suppresses light pollution well.
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The UHC filter is the best all-around dark-sky nebula filter.
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Available in two sizes, threaded to fit either standard 1.25ā or 2ā astronomical eyepieces.
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Supplied with storage case.
Original: $71.50
-70%$71.50
$21.45Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The narrowband UHC filter, like the O-III filter, isolates the two doubly ionized oxygen lines (496 and 501nm) in addition to the hydrogen-beta line (486nm) emitted by planetary and most emission nebulae.
Ā
Ā
This filter permits superb views of objects like the Orion, Lagoon, Swan and other extended nebulae.
Ā
It performs well in smaller aperture instruments owing to its greater light transmission than the O-III, yet still suppresses light pollution well.
Ā
Ā
The UHC filter is the best all-around dark-sky nebula filter.
Ā
Ā
Available in two sizes, threaded to fit either standard 1.25ā or 2ā astronomical eyepieces.
Ā
Ā
Supplied with storage case.
