Dual Bandpass Filters transmit two specific wavelength ranges through a single filter. They allow for natural color rendition during the day and infrared imaging at night.
Triple Bandpass Filters are specially designed to be used with converted consumer cameras and unmanned aerial vehicles (UAVs). They allow one camera to gather data from three discrete, narrow wavelength bands. This data can then be used to calculate vegetation indices, like Enhanced Normalized Vegetation Index (ENDVI). Triple Bandpass Filters are an affordable, lightweight alternative to aerial surveying applications otherwise requiring three or more cameras or sensors.