Ribcage Modified Hero4 Black with prototype internal NDVI filter. This filter can be used with any lens providing it has no IR-Cut filter. IR-corrected lenses are ideal because a portion of the visible spectrum is seen along with NIR/IR. IR corrected lenses allow visible and IR light to be in focus at the same time. In this case visible blue is passed. IR displays as pink when recorded. The idea is to use processed images from our modified GoPro as a lower cost single camera NDVI solution for small UAV's. Ribcage Modified Hero4 Black, DJI Phantom2, H4-3D 5.4mm M12 lens