In college, I used to take formal portraits of friends, including developing and printing with chemicals in a darkroom, old school. My rule of thumb was we'd be

In college, I used to take formal portraits of friends, including developing and printing with chemicals in a darkroom, old school. My rule of thumb was we'd be lucky to get one good shot out of a roll of 36, even with careful choice of pose, costume, location, background, lighting, and generally knowing what I was doing.