Guaranteed to measure at a television lighting consistency index of 95 1 the z720 ultracolor by fv is a daylight balanced high power ring light perfect for capturing gorgeous catchlights in the eyes of your subjects with a 290mm center opening it is able to be used with any size cinema lens and has mounting options for 15mm lws or 19mm studio rigs and a 58 attachment for lighting stands for further adaptability the z720 can be powered either by mains or 2 sony np f battery plates al