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.
12/05/2023: New firmware updates are available.
EOS R6 Mark II - Version 1.3.0
09/26/2023: New firmware updates are available.
CN-E45-135mm T 2.4 L F - Version 1.4.0
EOS 1DX Mark III - Version 1.8.0
08/18/2023: Canon EOS R5 C training series is released.
07/31/2023: New firmware updates are available.
05/18/2023: New firmware updates are available.
EOS Rebel T100 - Version 1.1.0
EOS 5D Mark IV - Version 1.4.0
PowerShot Elph 360HS - Version 1.1.0.0
PowerShot SX420 IS - Version 1.1.0.0
PowerShot 620 HS - Version 1.1.0.0
PowerShot SX720 HS - Version 1.1.0.0
PowerShot G1X Mark III - Version 1.1.0.0
PowerShot G7X Mark II - Version 1.2.0.0
PowerShot G9X Mark II - Version 1.1.0.0
03/30/2023: New firmware updates are available.
Speedlite EL-1 - Version 1.0.2
03/30/2023: Product Advisory for EF50 F1.2 L USM
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