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New Contributor
Posts: 2
Registered: ‎05-08-2019

Canon 5DMk3 will not recognise Speedlite ST-E3-RT

Speedlite ST-E3-RT not connecting

 

I have upgrade my camera software to current version to 1.3.5 and cleared all camera settings.

Cleaned the hotshot of camera and speedlite transmitter, and I still get the on screen message, 'Flash Function settings - This menu cannot be displayed. Incompatible flash or flash's power is turned off.'

 

1. The transmitter works without issue on Caon 80D

2. Transmitter links without issue to 2 x 600ex-rt speedlites

3. 600ex-rt speedlite works as a master on the 5Dmk3

 

Any suggestions

Esteemed Contributor
Posts: 4,921
Registered: ‎06-25-2014

Re: Canon 5DMk3 will not recognise Speedlite ST-E3-RT


@StuCraw wrote:

Speedlite ST-E3-RT not connecting

 

I have upgrade my camera software to current version to 1.3.5 and cleared all camera settings.

Cleaned the hotshot of camera and speedlite transmitter, and I still get the on screen message, 'Flash Function settings - This menu cannot be displayed. Incompatible flash or flash's power is turned off.'

 

1. The transmitter works without issue on Caon 80D

2. Transmitter links without issue to 2 x 600ex-rt speedlites

3. 600ex-rt speedlite works as a master on the 5Dmk3

 

Any suggestions


Speaking from total ignorance, I wonder if the transmitter and the speedlite are failing to agree on the wireless channel to be used.

Bob
Philadelphia, Pennsylvania USA
New Contributor
Posts: 2
Registered: ‎05-08-2019

Re: Canon 5DMk3 will not recognise Speedlite ST-E3-RT

Thanks Bob, but both the transmitter and speedlites are operating in the same channel.
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Product Expert
Product Expert
Posts: 824
Registered: ‎10-17-2012

Re: Canon 5DMk3 will not recognise Speedlite ST-E3-RT

StuCraw, 

 

We are sorry to hear that the issue persists.  We recommend sending the unit for service at your earliest convenience.  You may fill out an online repair request form at the following link to setup your repair using our online service.

https://www.usa.canon.com/internet/portal/us/home/support/service-repair

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