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.
02/20/2025: New firmware updates are available.
RF70-200mm F2.8 L IS USM Z - Version 1.0.6
RF24-105mm F2.8 L IS USM Z - Version 1.0.9
RF100-300mm F2.8 L IS USM - Version 1.0.8
RF50mm F1.4 L VCM - Version 1.0.2
RF24mm F1.4 L VCM - Version 1.0.3
01/27/2025: New firmware updates are available.
12/18/2024: New firmware updates are available.
EOS C300 Mark III - Version 1..0.9.1
EOS C500 Mark II - Version 1.1.3.1
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