About Color Temperature Information Transmission

When the flash fires, the color temperature information is transmitted to certain specific EOS digital camera. This feature optimizes the flash picture’s white balance. When the camera’s color balance is set to <A> or <Q>, it will work automatically.

To see if this feature works with your camera, see the “White Balance” specification in the “Specifications” of your camera’s instruction manual.

Reverting to 430EX Default Settings

When 430EX is attached to an EOS camera equipped with a <B> button, you can press it to revert the 430EX’s settings (except Custom Functions) to the default.

About the AF-Assist Beam

Under low-light or low-contrast conditions, the built-in AF-assist beam will be emitted automatically to make it eaasier to autofocus. The 430EX’s AF-assist beam is compatible with the AF points of almost all EOS cameras. The AF-assist beam is compatible with 28mm and longer lenses. The effective range is shown below.

Position

Effective Range (m / ft)

Center

Approx. 0.7 - 10 / 2.3 - 32.8

Periphery

Approx. 0.7 - 5 / 2.3 - 16.4

 

 

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