Baader Filters OIII CMOS f/2 Highspeed 65x65mm
701.36 AED
Tax included
OIII filters selectively transmit light with a wavelength of 501 nanometers, corresponding to the spectrum lines of doubly ionized oxygen. These emission lines are characteristic of planetary nebulae and some emission nebulae, allowing these celestial objects to remain visible while other wavelengths are effectively blocked by the filter.