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A new firmware update is available for the PocketWizard ControlTL system. Version 4.250 ControlTL firmware enhances the performance of the High Speed Sync (HSS) feature of Canon Speedlite flashes and also allows photographers to disable HyperSync™ mode in the MiniTT1 and FlexTT5, allowing use of HSS for shutter speeds down to 1/320 second. You can also find detailed information about these new features at http://www.pocketwizard.com/support/downloads.