Brand: Sky Instruments

Antares High Contrast Filters

Brand: Sky Instruments

Antares High Contrast Filters

$81.95 CAD

Size

1.25" 2"

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$81.95 CAD

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Product Description

Specialty blocking filter: transmits only 480-510nM. M28.4x0.6

2UHC

2UHC is a filter that blocks the visual spectrum except for wavelengths between 480nM and 510nM. Often called a Nebular or ALP (anti-light pollution) filter, this allow passage of ionized oxygen and hydrogen lines, but blocks light pollution reflectance from mercury and sodium vapor lamps. Threads into all 2" accessories.

UHC(1.25)

UHC is a filter that blocks the visual spectrum except for wavelengths between 480nM and 510nM. Often called a Nebular or ALP (anti-light pollution) filter, this allow passage of ionized oxygen and hydrogen lines, but blocks light pollution reflectance from mercury and sodium vapor lamps. Threads into all 1.25" accessories.

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