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usayit · 23.07.2008, 18:31

I have used the 550EX with a battery pack. Works great as a primary flash with offshoe cord (also Canon) and interchanging it with my Canon system is a plus. The disadvantage is that changing the power output of the 550EX is a bit cumbersome but from what I heard the 580EX improves on this feature.

I also use a Vivitar 422D using the same Canon offshoe cord. Flash operates in full manual and there is a convenient slider on the back to adjust the power output of the flash from FULL to 1/16th. Be aware that I said 422D and not 422. I hear the Vivitar 422 might have a high trigger voltage. Disadvantage of the 422D is that it lacks a zooming head.

One thing to note about Canon EX flashes is that they will not trigger wirelessly when operated on the M8 (or any other non-Canon camera body). I was a bit dissappointed as I thought it would be neat to leverage the wireless triggering of the 550EX/420EX set I already have for my Canon.

23.07.2008, 18:31	#5 (permalink)
usayit Benutzer Join Date: 18.05.2006 Posts: 67	Re: off camera flash I have used the 550EX with a battery pack. Works great as a primary flash with offshoe cord (also Canon) and interchanging it with my Canon system is a plus. The disadvantage is that changing the power output of the 550EX is a bit cumbersome but from what I heard the 580EX improves on this feature. I also use a Vivitar 422D using the same Canon offshoe cord. Flash operates in full manual and there is a convenient slider on the back to adjust the power output of the flash from FULL to 1/16th. Be aware that I said 422D and not 422. I hear the Vivitar 422 might have a high trigger voltage. Disadvantage of the 422D is that it lacks a zooming head. One thing to note about Canon EX flashes is that they will not trigger wirelessly when operated on the M8 (or any other non-Canon camera body). I was a bit dissappointed as I thought it would be neat to leverage the wireless triggering of the 550EX/420EX set I already have for my Canon.