430EX Speedlite : How to use the AF-Assist Beam and what is its coverage
Article ID: ART123269
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Date published: 05/12/2015
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Date last updated: 08/17/2015
Description
How to use the AF-Assist Beam and what is its coverage
Solution
Under low-light or low-contrast conditions , the built-in AF-assist beam will be emitted automatically to make it easier 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