The Optolong L-Quad Enhance Filter 2 inch is a quad bandpass light pollution suppression filter for colour cameras. It effectively suppresses the transmission of light pollution wavelengths, especially light pollution generated by artificial lighting (including mercury and sodium ...The Optolong L-Quad Enhance Filter 2 inch is a quad bandpass light pollution suppression filter for colour cameras. It effectively suppresses the transmission of light pollution wavelengths, especially light pollution generated by artificial lighting (including mercury and sodium lamps), as well as the effects of natural skylight-induced effects on the shot, thus enhancing the contrast and details of celestial bodies, and making them more distinct and stereoscopic.
This filter provides better colour balance while improving resistance to light pollution. L-QEF can be used for both wide field astrophotography, such as the Milky Way in summer and winter, and deep sky objects like nebulae, galaxies, star clusters, and so forth. It allows you to save time during the shooting process and get better results at the same time.
The design of quad bandpass maximises the colour balance of nebulae, galaxies, and other broadband spectral targets.