[mst]

[quote name='mst' timestamp='1330680649' post='16349']

Personally I consider the other announcement today, Canon's move to radio controlled wireless flash, almost more exciting. That was long overdue.

[/quote]



I've been reading about the ST-E3 and 600EX a little. Canon can now control each group individually, set power and flash mode seperately for each group. That finally puts their wireless flash system on the same level Nikon has had for years.



Even better: they can control up to 5 groups (2 more than before and also 2 more than Nikon CLS), but only up to 15 devices (why? no such limit with IR controlled flashes).



Good:



- works as remote trigger for cameras, too

- flexibility

- sealed components (flash and trigger)

- 600EX flash can do both (optical and radio wireless). However, I'm not sure you can mix both in one setup (trigger some older EX flashes optically and 600EX flashes by radio).

- ST-E3 now uses the much cheaper AA batteries



Not good:



- very limited range

- ST-E3 is radio only, no optical wireless. So, for now only works with the 600EX, not older flashes

- especially ST-E3 seems a bit expensive



-- Markus