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LPA Design analysis details Canon Speedlite 580EX II design flaws  
Thursday, February 17, 2011 | by Rob Galbraith
LPA Design, maker of PocketWizard wireless radio remotes, has published an analysis of the Canon Speedlite 580EX II that describes a "perfect storm" of design and manufacturing flaws, particularly in the flash tube and head, that can cause the IGBT transistor inside Canon's flagship flash unit to fail.

The company prepared the analysis in reaction to reports of failures of the 580EX II when used with the PocketWizard MiniTT1 or FlexTT5. LPA Design's position is that 580EX II failures are a result of flaws inherent to this Speedlite model rather than a problem being introduced by PocketWizard products, and their detailed and technical analysis provides compelling support for their assertions.
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