Explore Scientific Filters SII 6.5nm 1.25" (77345)
21104.17 ¥
Tax included
The Explore Scientific SII 6.5nm 1.25" filter is a specialized astronomical filter designed for observing and imaging specific types of nebulae and deep-sky objects. This narrowband filter isolates the emission line of singly ionized sulfur (SII) at 672 nanometers, allowing astronomers to capture detailed images of emission nebulae, planetary nebulae, and supernova remnants.