Canon 550EX manual FE Lock

sec.

• You can also press the < > button again to obtain an FE-lock reading for another part of the subject.

• To cancel FE lock, wait until 16 sec. elapse

or press the < >, <AF>, or < > button on the camera.

4 Recompose the picture as desired.

5 Check that the subject distance is within the flash range displayed on the 550EX’s LCD panel.

2. FE Lock

You can use FE (flash exposure) lock with Type-A cameras. This is the flash version of AE lock. With FE lock, you use spot metering to obtain the correct flash exposure reading for a specific part of the subject.

•FE lock works with E-TTL and high-speed sync (FP flash).

1Select a picture-taking mode with the camera.

2Focus the subject.

3Aim the viewfinder’s spot metering circle over the part of the subject to

be metered. Then press the < > button on the camera. FE lock remains effective for 16 sec.

• The 550EX fires a preflash to obtain an exposure reading. The reading is retained in memory.

• The focusing point linked to the FE lock lights in red.

• is displayed in the viewfinder for 0.5

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