 This paper reports on using unmanned aerial vehicles, UAVs, with tetra-cam multispectral data to analyze vineyards and tomato cultivations, creating tri-band ortho-images and extracting vegetation indices such as NDVI, GNDVI, and SAVI for crop vigor assessment. The study demonstrates the potential of high-resolution UAV data and photogrammetric techniques in precision farming applications for cost-effective crop assessment. This article was authored by Sebastian Candiago, Fabio Riemondino, Mikayla de Giglio and others.