Purtroppo, questa descrizione non è stato tradotto in italiano, in modo da trovare a questo punto una descrizione inglese. The new L-Quad Enhance filter is a quad bandpass light pollution suppression filter for colour cameras. Better suppression of starbursts, higher contrast and more details of the celestial objects can be detected. In addition, this filter offers better colour saturation, great performance on signal-to-noise ratio (SNR), plus a near IR cut-off up to 1000nm, reducing the effects of IR noise. The L-Quad is good for night skies from Bortle 1 to Bortle 7 levels, thus suitable for a wide range of DeepSky targets and it maintains an excellent colour balance.