The Canon Rebel XTi is a powerful consumer-level single-lens reflex (SLR) camera that offers the amateur photographer an excellent way to learn more about photography. With a 10 megapixel sensor and the ability to shoot three frames per second at shutter speeds as fast as 1/4000 of a second, the XTi can handle action photography, landscapes and portraits.
Getting Started
The XTi comes with a rechargeable lithium ion battery. After charging the battery, open the battery card door on the bottom and slide it in. The XTi uses Compact Flash memory cards; load one in the memory card slot, attach the neck strap to the camera and then attach a lens. The XTi can use a variety of Canon lenses and usually comes with an 18-55 mm wide-angle lens. Line up the dot on the lens (either red or white, depending on the lens), with the dot on the camera body, push the lens in and turn it to the right to lock the lens in place.
Exposure Modes
The XTi has several automatic modes that optimize the settings of the camera for certain scenes, including Portrait, Landscape, Macro, Action/Sports and Night Portrait. These modes allow the photographer to tell the camera what she is shooting to help get the best picture. These modes are much better than a basic automatic mode because the camera has more information about the type of scene and can set aperture and shutter for the best results.
Advanced Features
The XTi has advanced shooting modes, including Program, Aperture, Shutter and Manual. In Program, the photographer sets the ISO and White Balance, while the camera sets aperture and shutter. ISO is a measure of the sensitivity of the sensor to light; higher ISO settings increase light sensitivity, enabling better shots in darker conditions. White balance is a measure of how the camera sees the color white, enabling better color accuracy. Aperture controls how open the lens is and also controls depth of field in the shot or how much of the image is in focus from front to back. Higher Aperture settings close down the lens and result in more depth of focus. Shutter speeds are used to stop motion; higher shutter speeds are used for faster scenes. In full Manual mode, the photographer can control all four of these factors to get the shot he wants.
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