Bresser EXPLORE SCIENTIFIC 1.25 O-III Nebula Filter
Produkto numeris: 46799
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- 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
| Type of Product | Telescope acsessories |
The EXPLORE SCIENTIFIC O-III filter uses a characteristic property of the so called emmission nebulae . Those objekcts glow in special colors, the so called emmission lines. Those emmission lines are linked to chemical elements - in this case oxygen. The EXPLORE SCIENTIFIC O-III nebula filter blocks all other colors (and thereby nearly all of the artificial light) and only the two emmission lines of the oxygen can pass the filter . The result is astonoishing: suddenly nebulae are visible at locations that were completely empty without filters. In suburbian skies for example the veil nebula NGC 6992 is almost not visible with a 200mm telescope. By using this filter you can see the nebula and its structures without problems. A must for every visual observer. The EXPLORE SCIENTIFIC nebula filters come with a individual test certificate - your guarantee to receive a premium filter.
FEATURES
- enables the observation of so called emmission nebulae
- blocks almost the entire artificial light
- only the two emmission lines of the oxygen passes the filter
- 1x 1,25" O-III nebula filter
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