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eos m6 mkii - no wireless flash control

Started Oct 8, 2019 | Discussions thread
kli
kli Veteran Member • Posts: 4,589
Re: eos m6 mkii - no wireless flash control

Renard DellaFave wrote:

On the 270EX II, you just slide the on/slave/off switch to slave. You cannot set the channel or group. It's always in channels 1-4, and Group A, according to the user manual, page 17-18.

What I'm not clear on is if there's a way to set the ratio between the sender and a single slave (or individual manual power). You can set a ratio between A:B. The 270 is "A". I presume the 100 as sender is also "A", so I'm guessing not.

My take as well.

All that's in the manual is "When sender flash firing is set to [Enable], the flash units in group A fire". So I guess you'd need a receiver capable of being "B", then maybe the A:B ratio would work as SENDER:RECEIVER ratio.

Exactly right. The on-camera unit is always in Group A. You need at least one unit to be set to Group B to have A:B ratio control. The larger speedlights can be set to groups other than A. How many depends on the age of the model. The 550EX, iirc, can only do A or B, the 430EX/430EX II and 580EX/580EX II can do A-C, while the 600EX-RT models and 430EX III-RT can do A-E (though groups D&E are M only, can't be set to TTL).

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