For reference:

While looking over the CR thread referencing our post (which I do occasionally to find out how much traction our posts are getting over there), I noticed that a couple of people questioned the integrity of the post.

I just wanted to make it clear to our friends here where the information came from:
http://cpn.canon-europe.com/content/...nded_lenses.do

Bryan and I discussed qualifying the post by including the source within the text, but considering that the Canon Europe-oriented site specifically said, "Canon has released its official list of recommended lenses to use with the high-resolution EOS 5DS and EOS 5DS R cameras...," we didn't feel it was absolutely necessary.

But as you can plainly see, the list didn't appear out of thin air (and of course, no one here indicated they suspected that to be the case). :-)