600EX-RT on 7D

[photomad]

I have a 7Dand also a 600EX-RT. I am wanting to know that if I buy another 600EX Flash will it work with the radio transmitter on the 7D instead of buying a ST-E3-RT and then another flash later? I am looking for advice and/or suggestions. Thanks

[7D5D]

Yes.  One 600 will be set up as the master and the other as the slave. 

There are some minor limitations when using the 7D wih a 600 such as some of the settings cannot be set via the camera but instead must be set directly on the Speedlite.  There are some other limitation throughout the manual.  I think if you search for "released" in the PDF manual you will find all those differences.

Edit:  A word about the ST-E3-RT.   Despite that it doesn't have a AF assist beam, I have become a fan of the ST-E3-RT because of it very small size, weight, and ease of use.  Once you have your Speedlites, you might want to consider one these.

[photomad]

Awesome. Thanks for the quick response. I am easy about using the flash for set up if it cant be done on camera because that will change when they go on a 5D MkIII.

[p4pictures]

Some time ago I had similar questions about what doesn't  work with the 600EX-RT and the EOS 7D I wrote a blog post with my results

http://www.p4pictures.com/2012/07/using-the-speedlite-600ex-rt-with-pre-2012-eos-cameras/

Brian / p4pictures