Just opened the Amazon box (shipped from Big Value) that had what I expected to be a 600EX-RT, and turns out they shipped a 600EX instead (the order was for the RT version). I can't even find a 600EX (sans -RT) on the Canon (or Amazon, B&H, etc.) site. I am sure someone on this forum knows what this is...if it is more valuable than the 600EX-RT, please let me know so I don't send it back!!!

I bought it because I needed/wanted an extra Speedlite, thought having the latest and greatest would be cool, and anticipate using the radio transmission feature in the future. From a quick look at the manual, it appears that the only difference between the EX and EX-RT, besides the name, is the radio transmission functions.

Thanks!
Brian