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SVBONY UHC Filter (Ultra High Contrast) – Light Pollution Reduction for Nebula Imaging
The 8mm is for high-power lunar/planetary and double stars
they are compatible with nearly any instrument you may use
Astronomik UHC Filter – Ultra High Contrast for Deep-Sky Observing Monocular Mount no need to worry aboutThe 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 filters from other manufacturers. The Astronomik UHC (Ultra High Contrast) filter allows the transmission of nearly 100% of the radiation from both O III and H beta lines. Though the second window for the H alpha line is not intended for visual observing, it is important
US$ 17.85
US$ 319.32
US$ 17.85
