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Why Canon's Advanced Face Detection?

Why It's Hard to Photograph Faces
Understanding Advanced Face Detection
How Face Detection Works
An Easy-to-Use Solution

Why It's Hard to Photograph Faces
The human face should be the highlight of any picture. But even casual photographers know the frustration of trying to take clear, accurate shots of human faces under challenging conditions. Why is it so hard to get good pictures of faces? One reason is that cameras tend to overadjust to the conditions, "averaging out" light and darkness for a balanced overall picture. So, if you're taking a picture of a light-colored face against a dark background such as a shadowy hallway, the camera’s flash will often cause the face to look too white and washed-out, with no details or dimension. Or if you're photographing someone against a bright background such as a sunny beach, the face will probably look shadowy since the camera "sees" plenty of light in the picture and assumes that flash is unnecessary. Another cause of difficulty is that cameras tend to focus on the closest object in a picture. If that object doesn’t happen to be the person you really want to capture, then you're out of luck—your subject's face will lack sharpness and clarity.

Understanding Advanced Face Detection
To address the challenges involved in capturing the human face, Canon incorporated Advanced Face Detection Technology into its newest PowerShot digital cameras.* Advanced Face Detection automatically identifies and quickly focuses on the faces in any picture. It sets the proper focus, exposure, and flash, so that you can concentrate on watching for a memorable smile and snapping at exactly the right moment. The goal is to let you take good face pictures without even thinking about it. Using Advanced Face Detection technology, you can identify and track at least nine forward-looking human faces at the same time. The technology not only keeps the faces sharp, but also gives them exactly the right exposure for a quality picture. With select PowerShot digital cameras such as the PowerShot G9 and SX100 IS, you can use the Face Selector feature to track a face anywhere in the scene. And you can use Red-Eye Correction together with Advanced Face Detection to fix red-eye directly in the camera during photo playback.

How Face Detection Works
Suppose you’re photographing a child sitting behind a birthday cake, poised to blow out the candles. Instead of focusing on the cake in the foreground, a PowerShot digital camera with Advanced Face Detection AF will zero in on the child’s face, ensuring that you capture every detail of that brilliant smile. If you’re snapping your best friend standing in front of a twilight horizon, Advanced Face Detection AE will prevent his/her face’s highlights from getting blown out. You’ll end up with natural coloring, slight shadows, and a gentle glow. On the other hand, if you're photographing your favorite aunt standing in front of a shimmering lake, Advanced Face Detection FE will make sure that your flash fires, so the face will be properly lit and all of her features will be visible.

An Easy-to-Use Solution
Although Advanced Face Detection is based on complex technology, the feature is easy to use. Just frame your shot and press the shutter halfway. The camera can then detect multiple faces for focus, and analyze them to precisely calculate ambient exposures. It can also adjust the flash to correctly illuminate your subject and provide the best balance between your subject and the overall scene. As a result, you get sharp exposures with accurately represented skin tones. And if you're shooting in movie mode, some Canon models allow you to use Face Detection Technology to ensure the same sharp focus and accurate exposure you enjoy in your pictures. You'll capture every expression even if your subjects are in constant motion. Advanced Face Detection is just one innovative feature available in Canon PowerShot digital cameras.

*The Face Detection feature is available on select PowerShot cameras; please check with your retailer for models having this technology.