Analog film photography and cameras

With difficulty. Take a bunch of meter readings (reflected and incident) and a bit off guesswork. Another shot didn't really come out properly at all but having a lit subject helps.

Diapositives are, I think, best shoot at night under ambient illumination with brain and not meter. If a meter, only incident is of any good utility (a spot meter will only confirm that the whole undertaking is daft) but the general problem is not just the illumination of the subject but the total image contrast, highlights and shadows. Its typically serendipity. When less should be left to chance, in cinema before all the wonderful HMI lamps one "solved" the problem by shooting night shots in daylight--- the title of a Trufauft film was even "Day for Night".