I just finished watching a video that explained some of how UV light looks with a UV camera. In the video, at one point the UV camera made everything distinctly green. At another point, everything was purple instead of green. The video had demonstrations about absorbing UV light and how that made things darker vs. reflecting UV light made them brighter, but I still don't know how the green to purple shift happened.
Was that an issue of the camera lens? Is my own color perception somehow incorrect and there was never any green at all?