There are fluorescent tubes from General Electric specially suited for motion picture lighting (either for daylight- or tungsten-type film) as well as compact fluorescent lamps e. g. from Osram-Sylvania (Biolux?) or from Narva (Bio-Light) with a color rendering index (CRI) of 960 (= at least 90 %, 6000 K).
I have obtained good results with the Narva lamps on a copy stand with Agfa slide film (but it has to be tested with every type of film).
CRI 827-lamps turn out like mustard or curry; such cheap compact fluorescent lamps are a nightmare even with color print films such as the Fujicolor Superias with a cyan-sensitive color layer.
First graph is a spectrometer reading of the above mentioned bulb. The second is a reading from a hand flashlight with a tungsten bulb. Daylight would look similar but shifted to the left.
Yeah, Tim. I think the kino tubes I use working are 98 CRI. Film needs a very high CRI like that. If you're shooting a digital format or video you can get away with somewhat lower CRI.
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