02-23-2020 02:53 PM
02-24-2020 12:46 AM
Hey there,
I believe you are referencing the "External Speedlite Control" menu selection in your EOS 6D. This menu selection is not compatible with the Speedlite 550EX because the technology was integrated into the camera after the Speedlite 550EX so the flash doesn't know how to read that communication from the body. All of the same settings should be accessible through the Speedlite's menu system though.
04/16/2024: New firmware updates are available.
RF100-300mm F2.8 L IS USM - Version 1.0.6
RF400mm F2.8 L IS USM - Version 1.0.6
RF600mm F4 L IS USM - Version 1.0.6
RF800mm F5.6 L IS USM - Version 1.0.4
RF1200mm F8 L IS USM - Version 1.0.4
03/26/2024: New firmware updates are available.
EOS 1DX Mark III - Version 1.9.0
12/05/2023: New firmware updates are available.
EOS R6 Mark II - Version 1.3.0
07/31/2023: New firmware updates are available.
Canon U.S.A Inc. All Rights Reserved. Reproduction in whole or part without permission is prohibited.