Portrait in black

I had to be careful with the exposure in this Moroccan portrait of a Berber woman.  The subject is wearing primarily black, and that means that the meter would be adversely affected by all of that darkness. Tthere isn't a middle toned area of the image from which the meter can accurately determine the exposure.  Instead, the meter assumes the black fabric is middle gray, and as a result the picture will be overexposed by as much as one full f/stop or more.  The solution is to study the LCD monitor after a first test shot and then tweak the exposure according to taste.  In this intance, I set the exposure compensation dial to minus one f/stop.  That insured that the black fabric looked black, and at the same time the woman's skin -- what little we can see of it -- is not too light.  The interior of her tent was the background, and even though it was dark I darkened it further using the burn tool in Photoshop.  The settings for this picture were 1/200th, f/5.6, 1250 ISO, and I shot this with a 24-105mm lens set to 105mm.