Bresser EXPLORE SCIENTIFIC 2 S-II Nebula Filter 6.5nm
Produkto numeris: 46786
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- High-quality EXPLORE SCIENTIFIC S-II filter
- Only lets the emission line of ionized sulfur at 672 nm pass
- Absorbs all other emission lines and almost all artificial light
- For planetary nebulae, emission nebulae and supernovae
- Band pass width: 6.5 nm
- Narrow band version for difficult urban conditions
- Individual test certificate included to guarantee you receive a premium filter
| Type of Product | Telescope acsessories |
The EXPLORE SCIENTIFIC S-II filter uses the property of the so-called emission nebulae. These objects glow in certain colors, the so-called emission lines. The emission lines are associated with certain chemical elements - in this case ionized sulfur. The EXPLORE SCIENTIFIC S-II nebula filter blocks all other colors (and thus almost all artificial light) and lets only the emission lines of ionized sulfur at 672 nm through . The effect is amazing: suddenly, nebulae become visible in places that appear completely empty without the filter. In slightly brightened skies, many planetary nebulae, emission nebulae and supernova remnants can be seen without any difficulties when using this filter. A must for every visual observer and for astrophotography.
EXPLORE SCIENTIFIC nebula filters come with an individual test report - so you can be sure to get high quality filters.
FEATURES
- Simplifies the observation of planetary nebulae, emission nebulae and supernova remnants
- Blocks almost all artificial light
- Only lets the emission lines of ionized sulfur at 672 nm pass
- Transmission bandwidth: 6.5 nm
- Allows for more contrast in faint deep sky objects
- ideal for use near cities, in heavy brightened skies
- individual test certificate included to guarantee you receive a premium filter
SCOPE OF DELIVERY
- 1x 2'' S-II nebula filter
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