06_380871-ch02.qxp
6/20/08
6:44 PM
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Chapter 2 ✦ Using the Rebel XSi/450D
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Night Portrait mode
Flash-off mode
In Night Portrait mode, the Rebel XSi/450D combines flash with a slow synch speed to correctly expose both the person and the background. Because this mode uses a longer exposure, it’s important that the subject remain still during the entire exposure to avoid blur. Be sure to use a tripod or set the camera on a solid surface to take night portraits.
In Flash-off mode, the Rebel XSi/450D does not fire the built-in flash or an external Canon Speedlite, regardless of how low the scene light is. In low-light scenes using Flash-off mode, be sure to use a tripod.
You should use this mode when people are in the picture, rather than for general night shots, because the camera blurs the background similar to the way it does in Portrait mode. For night scenes without people, use Landscape mode or a Creative Zone mode and a tripod. In Night Portrait mode, the camera automatically sets the following:
In Flash-off mode, the camera automatically sets the following:
✦ Standard Picture Style ✦ AI Focus AF autofocus mode with automatic AF-point selection which means that the camera uses Oneshot AF designed for still subjects, but it automatically switches to the focus tracking mode AI Servo AF if the subject begins to move; automatically selects the AF point
✦ Single-shot drive mode ✦ Flash-off mode
✦ Standard Picture Style ✦ One-shot autofocus mode with automatic AF-point selection
✦ Single-shot drive mode with the option to set 10-second Selftimer/Remote control mode
You can easily change to any of the Basic Zone modes: turn the Mode dial so that one of the Basic Zone modes lines up with the white mark on the camera. Then press the Shutter button halfway down to focus, and press it completely to make the picture.
✦ Automatic flash with the ability to turn on Red-eye reduction
How Is Program Mode Different from Full Auto Mode? While the names of these two modes are similar, they vary greatly in the amount of control that they allow you. In Full Auto mode, the camera sets the exposure for you and you cannot change it. However, in Program (P) mode, you can temporarily change the camera’s suggested shutter speed and aperture settings. Equally important, P mode allows you much more control over camera functions. In P mode you can set the following functions, none of which you can set in Full Auto mode: Continued