Canon 8090A004 EOS Rebel Ti manual - Page 44

AE Lock With the same AF point, you can obtain and lock the auto exposure setting on one part of the picture and then recompose to focus a different part of the picture. AE lock enables you to maintain the same exposure setting even after recomposing the shot. This is effective for backlit subjects. During AE lock, partial metering (→page 35) is used automatically. 1 Focus the subject. • Press the shutter button halfway to focus. ( ) Proceed to steps 2 and 3 holding the shutter button halfway down. 2 Aim the viewfinder center over the part where you want to lock the exposure, then press the < > button. ( ) The < > indicator lights in the viewfinder and the exposure setting locks (AE lock). • The auto exposure locks every time you press the < > button. 3 Compose the shot and take the picture. • If you want to maintain the AE lock while taking more pictures, hold down the < > button and press the shutter button to take another picture. 44