Explore Scientific 2" Filtre H-Alpha 7nm

The 2" 7nm H-Alpha filter from Explore Scientific is specifically designed for astrophotography and allows to capture emission nebulae, even under skies polluted by artificial light. This filter blocks almost all other colors, only letting hydrogen emission lines pass through, which shine bright red. It effectively eliminates disturbing light from mercury vapor and sodium lamps, revealing invisible details to the naked eye. Thanks to a narrow bandwidth of only 7nm, this filter greatly improves contrast and allows to capture faintly luminous nebulae, even in urban areas. Ideal for astrophotographers who want to achieve stunning results despite light pollution.