Quote Originally Posted by Busted Knuckles View Post
While I am on the topic, does anyone know if the 270II can be used as a Master/Controller. I have used the flash on the t3i to trigger the slaves, but the 5dIII doesn't have a built in flash.... If not, how far up the Canon line do I have to chase to get a flash that is act as a master/controller?
The 270EX II is slave only. Used to be you had to go to the 580/600 to get a master flash (or ST-E2 if you skipped the flash part). But now, you only need to go as high as the bottom - the new 90EX functions as a master, for $150! It is limited in both range and functionality (12-16 ft, no HSS support for remotes, etc.), but it's cheap and does the basic stuff.