With the Sentera NDVI Upgrade the camera is able to capture images with sensors capable of recording the reflected light off the images across the light spectrum: RGB, Mutispectral and Thermal. RGB cameras, RGB (visual color) is the most common type of data collected and the cameras that are typically standard on most commercial drones. It produces images that look like how we view things with the naked eye. Multispectral cameras allow you to see things that are not visible to the naked eye. It picks up the reflected light from the near infrared range of the light spectrum so you can get a more accurate view your crop’s health. The single sensor camera uses NDVI (Normalized Difference Vegetation Index) or NDRE (Normalized Difference Red Edge) where the multispectral sensor is equipped with multiple cameras each collecting images from a different part of the spectral range. These multispectral systems can range from a two camera system up to five cameras, plus a RGB camera, making it six cameras in all simultaneously collecting images during a flight mission. Thermal cameras are very useful for early detection of plant stress. The appearance of plant stress can be seen in the thermal long wave infrared (LWIR) part of the spectrum. Thus you can become aware of such things as irrigation issues very early on in the crop maturation. The price for this upgrade is about $2,000.
(Last Edit: 9 March 2023, Kellee)