TL;DR Negative film is (obviously) intended not for viewing by humans, but for a specialized development process. Digital cameras are geared towards capturing i

TL;DR Negative film is (obviously) intended not for viewing by humans, but for a specialized development process. Digital cameras are geared towards capturing images as humans would perceive them, and in regular photography using full spectrum light supposedly makes metameric failure less likely. Thus, it may appear counter-intuitive to a seasoned photographer that using a specific narrow band RGB lighting can be preferable when digitizing typical negative film, working around the use case mismatch and improving colour reproduction.