Baader Filters OIII CMOS f/2 Highspeed 2" (70917)
949.41 zł
Tax included
OIII filters allow only light with a wavelength of 501 nanometers to pass through. This corresponds to the spectral lines of doubly ionized oxygen. These lines are emitted by planetary nebulae and some emission nebulae, making these objects visible while blocking out other light. This enhances contrast and reveals faint nebulae that were previously invisible.