Baader Filters OIII CMOS f/3 Ultra-Highspeed 50.4mm (75581)
128686.17 Ft
Tax included
OIII filters are designed to allow light with a wavelength of 501 nanometers to pass through, corresponding to the spectral lines of doubly ionized oxygen. These lines are emitted by planetary nebulae and some emission nebulae. By blocking other wavelengths, the filter significantly enhances contrast, making faint nebulae visible for the first time.