John F previously wrote: And I *know* Shel is old enough to remember when you had to go out of your way to buy panchromatic film, because I am. I'm not sure that some of you youngsters even know what the distinction is ...
The answer is orthochromatic film which was not sensitive to the red part of the spectrum. So portraits shot with it would have very dark lips, especially if it was of a lady wearing red lipstick. I'm not quite old enough to have ever shot any, but that info, and the film, was still available when I was learning photography.
