(Cheap) Wireless trigger to work alongside YN622-Cs

[Durbs]

Howdy folks.

So I've set up a photo booth for my forthcoming wedding - 7D with 2x remote flashes, and then realised I don't have a wireless trigger, only cabled.

Looking for a cheap(<£30?) trigger for guests to press than can be used with the YN622 mounted on the camera - any thoughts?

I've seen the Canon one which is IR (and therefore requires line of sight?) - not ideal as it's going to be mounted on the inside of the frame so it's obvious for guests to press.

Any thoughts?

 

[mountainpenguin]

the yn603 will do but set the id for a different frequency

 

[Durbs]

Would I then have to stack them with a 603 underneath the 622?

None that plug straight into the trigger port?

 

[LongLensPhotography]

YN MC-36R