![]() With this strong blocking of the sky background an unexpected wealth of detail becomes visible for gas nebulae and planetary nebulae.Īstronomik UHC filters’ astounding high light transmission brings better views of deep-sky-objects even to small telescopes! The high transmission of the optical glass filters means that enough light is available to allow successful visual observations with telescopes beginning at 2" (50mm) aperture. All annoying, scattered light from other wavelength sources, including local artificial light pollution, is reliably filtered out. Though the second window for the H-alpha-line is not intended for visual observing, it is important, if the filter is used with an electronic device. The Astronomik UHC (Ultra High Contrast) filter allows the transmission of nearly 100% of the radiation from both O-III and the H beta lines. You will enjoy using your Astronomik UHC filter because you will see more stars and more details in deep-sky-objects compared to using filters from all other manufacturers. The filter corrects the displaced colour reproduction of a converted camera so that it can also be used for normal every-day photography, without having to revise every image on the computer.The Astronomik UHC is the filter for visual observing.
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