Explore Scientific 2" Filtre H-Alpha 12nm

The 2" 12nm H-Alpha filter from Explore Scientific is specifically designed for astrophotography, offering an effective solution for capturing emission nebulae under light-polluted skies. This filter blocks almost all artificial light, especially that of mercury and sodium vapor lamps, and only allows the hydrogen red emission line to pass through. This reveals hidden details and captures nebulae that would otherwise be invisible. With a 12nm bandwidth, this filter significantly improves the contrast and clarity of deep-sky objects, even in urban observing conditions. An essential accessory for astrophotographers seeking exceptional images despite light pollution. Each filter is delivered with an individual test certificate guaranteeing its high quality.