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X. External Flash adjustments
Now that you are familiar with camera
adjustments that effect picture color and
brightness, this section will describe how to
adjust the external flash.
Flash Brightness control
You can manually or automatically control
the external flash brightness by adjusting the brightness control dial
located on the back of the flash head. 10 is the brightest setting. Take
some test pictures and experiment with the effect of the brightness
control.
If the test image is over-exposed (white or washed out colors), turn
the power adjustment 1 or 2 steps clockwise to reduce the flash
brightness and take another picture. Do this until the image exposure
is satisfactory.
If the test image is under exposed (dark), turn the power adjustment 1
or 2 steps counter-clockwise to increase the flash brightness and take
another picture. Do this until the image exposure is satisfactory.
Remember that the flash will only reach about 6 ft to 8ft (1.8m to
2.4m) depending on water visibility, so make sure to keep your
underwater shooting distance within that range.
If you turn the brightness control all the way clockwise, to AUTO, the
flash will automatically adjust the brightness.
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