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Arriving at the best exposure for a photo is part science and part art. In Foundations of Photography: Exposure, Ben Long helps photographers expand their artistic options by giving them a deep understanding of shutter speed, aperture, ISO, and all other critical exposure practices. This course covers the basic exposure controls provided by all digital SLR cameras, as well as most advanced point-and-shoot models. Learn how to master a camera's metering modes, how to use exposure compensation and bracketing, and much more. By the end of the course, you'll know how to develop an "exposure strategy" that will allow you to effectively employ your exposure knowledge in any shooting situation.
This is Ursula. Ursula has figured out that I have peanut-butter-filled pretzels in my pocket, and apparently, I'm not giving her enough of them. Ursula is an interesting exposure challenge, not just because she is chewing on my fingers and trying to get pretzels out of my pocket, but because her face has black on it, and white. If I try to take a shot of her, my camera is going to be thrown off by the black. It's going to overexpose, and I'm going to lose detail on the white. So I'm going to just kind of get her busy chewing, and take a quick shot.
If you look here in bright sunlight, you see that this bit right here is all overexposed. All the stuff on her nose is overexposed. So what I'm going to do is an intentional underexposure. Now we talked about how when you meter, your camera tries to find a shutter speed and aperture combination that yield a good exposure, which means good overall brightness. Well, in this case, again, it's being thrown by the black bits, and we're losing the white bits. So using my exposure compensation control, I'm going to dial in one stop of underexposure.
I'm going to take another shot or two. Ursula is getting really bored. Now if you look at these, you'll see that we've got detail back on her nose. All the white stuff is back. The black has gone blacker. I can either try and bring that up in my image editor or actually it looks okay, because she is pretty dark. So overall, I'm getting a better exposure. So there are times when you have to out-think your meter, where what it's delivering is not good for the exposure situation you're in. You have to either intentionally under- or overexpose to put tone back where it needs to be.
Ursula is leaving, so that's it for this particular lesson.
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