The new flash：600EX（without RT）？

[windscmoon]

http://www.canon-me.com/For_Home/Product_Finder/Cameras/speedlite_flash/speedlite_600EX/

[neuroanatomist]

Your point?

Yes, there are two 'flavors' of the 600EX - one with radio triggering (-RT) and one without.  Availability is geographically restricted, so in some markets only one is available.  For example, in the USA only the -RT version is sold (or at least, that's supposed to be the case - someone reported ordering a 600EX-RT from a 3rd party seller on amazon.com, and getting shipped a 600EX non-RT - meaning ripped off, since they paid for the -RT and got a grey market item lacking that feature instead).

[cezargalang]

I just bumped into this, i really thought this was a mistype or something.

http://www.canon-europe.com/For_Home/Product_Finder/Cameras/speedlite_flash/speedlite_600EX/

Here it's listed with the 600 EX RT.

http://www.canon-europe.com/For_Home/Product_Finder/Cameras/speedlite_flash/

[Bennymiata]

They should have just the one version with radio, infra red AND optical triggering.

Stupid to have 2 versions.

[niccyboy]

Is the geographical restrictions based on legality of the radio frequency?

i know that the USA Pocketwizards have a different frequency to the AUS ones... and it's apparently not legal to import and sell the US ones?

[neuroanatomist]

AFAIK, it uses the 2.4 GHz band, which is what's used for 802.11(g) wireless.  Still, some countries restrict those frequencies to specific types of devices, and while it's possible that Canon could have sought regulatory approval for the RT flash in those countries, that approach was deemed more expensive than developing another version without the radio.