Sealife Sea Dragon flash Instruction Manual page 19

Camera's flash setting
Almost all digital cameras allow you to select the flash setting to
Auto, Force ON, Force OFF or Red-Eye Reduction.
For SeaLife cameras, set the camera to Ext Flash mode (or Ext
Flash Auto mode). The SeaLife External Flash mode is a special
underwater program that synchronizes the camera's exposure
program, color balance and internal flash to the SeaLife external
flash. The camera's flash will always fire in Ext Flash mode.
For non-SeaLife cameras, select FORCE ON. Remember, your
external flash will only fire if your camera's flash fires.
Manual exposure controls
Some digital cameras include manual aperture and shutter speed
controls, which requires advanced knowledge of photography
principles. These controls are too advanced for this instruction
manual.
For SeaLife cameras, set the camera to Ext Flash mode (or Ext
Flash Auto mode). The camera will automatically select the best
aperture and shutter speed setting for underwater flash
photography. Some SeaLife cameras include Ext Flash Manual
mode. Please refer to the camera instruction manual for more
details.
For non-SeaLife cameras with manual exposure controls, you
may want to take an underwater photography course to learn
more about using manual controls.
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