Astronomik UHC 31mm Filter – Enhance Deep-Sky Viewing with High Contrast refractor telescope diagonal Audio transmission can be achieved

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Astronomik UHC 31mm Filter – Enhance Deep-Sky Viewing with High Contrast refractor telescope diagonal Audio transmission can be achievedAstronomik UHC 31mm The Astronomik UHC is THE filter for visual observing. 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 Astronomik UHC (Ultra High Contrast) filter allows the transmission of nearly 100% of the radiation from both O III and the H beta lines. Though the second window for the H alpha line is not intended for