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Explore ScientificStyle Name:1.25″/3.175 cm O-III Mist Filter One of the most importantobstacles for the exploration of the night sky is the brightening of the nightsky by artificial lights, such as streetlights. The night sky is not reallydark in the vicinity of towns or cities, which reduces the visibility ofobjects beyond the solar systems enourmously. Depending on the type of thecelestial object it is possible to increase the contrast dramatically byblocking the annoying artifical light. The EXPLORE SCIENTIFIC O-III filteruses a characteristic property of the so called emmission nebulae. Thoseobjekcts glow in special colors, the so called emmission lines. Thoseemmission lines are linked to chemical elements – in this case oxygen. TheEXPLORE SCIENTIFIC O-III nebula filter blocks all other colors (and therebynearly all of the artificial light) and only the two emmission lines of theoxygen can pass the filter. The result is astonoishing: suddenly nebulae arevisible at locations that were completely empty without filters. In suburbianskies for example the veil nebula NGC 6992 is almost not visible with a 200mmtelescope. By using this filter you can see the nebula and its structureswithout problems. A must for every visual observer. The EXPLORE SCIENTIFICnebula filters come with a individual test certificate – your guarantee toreceive a premium filter.FEATURES enables the observation of so calledemmission nebulae blocks almost the entire artificial light only the twoemmission lines of the oxygen passes the filterSCOPE OF DELIVERY 1x 1,25″O-III nebula filter Product Features High-quality EXPLORE SCIENTIFIC O-III Fog Filter Only lets pass the emission lines of oxygen Absorbs all remaining colors and almost all artificial light Individual test report included
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Category: Cameras and Photography:Telescopes and Binoculars:Telescope Parts and Accessories:Filters
Location: GB