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Omegon pro H-beta 25nm filter - the best way to see the Horsehead nebulaThere are objects that are so interesting that you should get round to observing them at least once. This includes the famous Horsehead nebula, which adorns so many wonderful astronomy images. But what would it be like to see it 'live' with your own eyes?With the Omegon Pro H-beta filter and a telescope above 8"-10" in aperture, your wish can come true. The filter allows light to pass only in the hydrogen emission region at 486nm. With a bandpass of 25nm, it is particularly suitable for visual observing.The filter will do all of the following:improve contrast between the object and the night sky backgroundprovide a particularly good image under a dark skybe particularly useful for observing the Horsehead nebula, Cocoon nebula and California nebulaThe H-beta filter offers you something more than just the 'everyday sky'; it lets you explore the extraordinary!