Levenhuk Ra UHC 1.25\ Click on images to enlarge
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Levenhuk Ra UHC 1.25'' Filter

Part#: 45128

This filter was designed for observations of dim and low-contrast deep-sky objects. The passband includes the Hß wavelength (4861 Å) and the OIII doublet (4959 Å and 5007 Å). Some planetary and emission nebulae are emitting up to 90% visible light in this range. This filter, therefore, enhances the contrast of nebulae details from 2–5% to 10–50%. This filter has a barrel diameter of 1.25" and can be mounted on the eyepiece of your OTA.

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