Fill flash with a Sigma EF-610 DG ST and a 5D2?
I am considering buying a Sigma EF-610 DG ST for use with a 5D2? I have been reading the specs on this flash unit and it is not obvious how to use it as a fill flash for available light/out-door photography. Or should I buy the Sigma EF-610 DG ST Super or similar unit?
Before I switched to Canon, I was shooting Sony and had the Sigma 610 DG Super, it was a very powerful flash, easy to use as well. I don't think you'll have a problem with either of them.
You should just be able to turn it on and have it fire fill flash no problem.
Canon 50d gripped, 70-200 f2.8L IS USM, 50mm f1.8, 18-55 f3.5-5.6, 430ex II.