Set AutoFocus on the Canon 50D
The Canon 50D is a prosumer digital SLR with a 15-megapixel sensor and the ability to shoot 6.3 frames per second. When combined with the nine autofocus points the the 50D's use of cross point focusing that looks at both horizontal and vertical focus when used with f2.8 lenses, the 50D is a powerful tool for the action and sports photographer, as well as anybody shooting in low light without a flash. You can use either a grid autofocus or single point autofocus, selecting any of the nine points as the autofocus point.
Instructions
1. Select autofocus on the left side of the lens by sliding the switch to AF.
2. Select the "Autofocus Mode" by rotating the control dial on the right side of top the camera. You can select one shot, aI focus or aI servo. Use one shot for still subjects and servo for moving objects--as the the lens will continuously focus when the shutter button depresses halfway. AI focus switches automatically between servo and one shot.
3. Press the "Autofocus Grid" button on the upper right side of the back of the camera, then press the Multi-controller button in the direction you wish to select one of the nine autofocus points. If you press the "Autofocus Grid" button once, it will employ all nine points.
4. Press the "AF Drive" Button on the right side of the top of the camera, then rotate the main control dial on the back of the camera to select between single shot, high-speed continuous (6.3 frames per second), low-speed continuous (3 frames per second), self-timer (10-second delay) or self-timer (2-second delay).
Tags: frames second, right side, Autofocus Grid, Autofocus Grid button, autofocus points