Filtre O-III 6.5nm Explore Scientific 1.25"

The Explore Scientific 6.5nm O-III 1.25" filter is designed to enhance the observation of emission nebulae and deep sky objects, even under artificial light polluted skies. By blocking almost all other colors and only allowing the two oxygen emission lines to pass through, this filter reveals hidden details that are invisible without a filter. This 6.5 nm narrowband filter is particularly effective in difficult urban conditions, where it increases the contrast of faintly glowing nebulae. An essential tool for amateur astronomers and astrophotographers, this filter allows for observing objects like the Cirrus Nebula NGC 6992 with surprising clarity. Each filter comes with an individual test certificate, guaranteeing its superior quality.