M6 Mark II external flash.

[Johnmtchl]

I have a Canon M6 mark II
I need an external flash, for some photography I'm taking a dance.
Unfortunately I do not want to take my viewfinder off.
I have a cage with plenty of hot shoe mounts one on top for the flash, and many on the side for a small wireless transmitting box.
I basically need an external flash and a box, that do not interfere with my hot shoe mount.

I'm curious if there is something that could plug into one of the ports on the camera, that I can mount on a cold shoe, plug into the camera, and mount my flash on a cold shoe.

Any thoughts? 

[kvbarkley]

The only way to trigger a flash is via the hot shoe.

If you had a built-in flash you could use that for a trigger.

[Johnmtchl]

It does have a built in flash, though I'm worried that won't be enough.

[kvbarkley]

You can buy trigger circuits that will ignore the pre-flash and trigger your external from the built-in flash.

[Johnmtchl]

I'm not sure I'm familiar with that? Any explanation or link?

[kvbarkley]

This link might not survive, but google "E-TTL optical flash trigger"

https://www.bhphotovideo.com/explora/amp/photography/tips-and-solutions/camera-flash-systems-wedding...

[This link's okay!]

[Johnmtchl]

So from what I gather, if I have a my built in flash go off, and then my other flash goes off, if I have one with an optical sensor? Sorry, I'm so new to this!

[kvbarkley]

Yep, that is the way it works.

[Johnmtchl]

So I have to take two pictures back to back, as quick as I can?

[kvbarkley]

No, you aren't fast enough for that! 8^)

You either put the M6 in manual mode so there is no pre-flash, or use a trigger that ignores the pre-flash.