Hi, yes the umbrella I'm looking for would be used with the off camera speedlights to produce a softer light for beauty shots on location.
I have found a 43" umbrella on eBay which should do the job, although the 86" version would do a much better job if I fired four 580 EXIIs into it.
Oh well, the 43" will suffice.
Maybe I'll get to of them and stack them.
Thanks
Two Jack Studio