I need an extra flash for Canon. Suggestions?

[mickledore]

I use a 5D3 and have a couple of EX 580 Mk 2 flash guns. When I use these off camera I use a ST-E2 to drive them.

I now want an additional flash for occasional use.

I don't think the expense of another 580 can be justified so was thinking of one of the Yongnuo range. Trouble is I don't know which is closest in spec to my existing guns.

I assume someone on here will be using something like this, so can you advise me which of the range will match most closely?

 

[Phil V]

Closest in spec is the 568, but if you can do without HSS the 565 is cheaper.

 

[mickledore]

Thanks. It's only for occasional use so HSS won't be needed.