Explore Scientific 2" S-II Filtre 6,5nm
Explore Scientific 2" S-II Filtre 6,5nm
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€115,00 EUR
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The S-II 6.5nm 2" filter from Explore Scientific is designed to facilitate the observation of deep-sky objects, such as planetary nebulae, emission nebulae, and supernova remnants, even in difficult viewing conditions in urban environments. This narrowband filter blocks almost all artificial light and only allows the sulfur ionized emission line at 672 nm to pass through, revealing invisible details to the naked eye without a filter. With a bandpass of only 6.5 nm, it significantly increases the contrast and sharpness of faint celestial objects. This filter is ideal for amateur astronomers as well as astrophotography.
- Bandpass: 6.5 nm
- Filtrated emission line: sulfur ionized at 672 nm
- Material: high-quality optical glass
- Almost complete blocking of artificial light
- Anodized aluminum design for increased durability
- Male-female threading for use with multiple filters
- Facilitates the observation of nebulae and other deep-sky objects in urban conditions
- Improves contrast and visibility of details on faint objects
- Compatible with 2" aperture telescopes or larger
- Essential for astrophotographers and visual observers
- Compatible with 2" diameter eyepieces
- S-II 2" filter
- Dust protection case
- Individual test report to ensure quality