From Facebook...
Got 11-24mm F4 Canon Lens today. Tried it out on my beat up Canon 5D Mark 3. It works great. Paid $1791 USD for it plus $50 USD for shipping and $43 CAD on taxes at the post office. A very expensive lens but a bit cheaper than everything else listed on eBay. Plan to use it in Bangkok's Klong Toey slum and in the dump with the families next year. Probably could use it on the Thai stray street dog project as well.
Would love to be able to get a Mark 4 body as well but do not have the funds for that. The Mark 4 is even better in low light than the 3. This lens is fully functioning and without any damage to the glass or body. Got to love that! When you buy 2nd hand your always a bit worried, this buy looks to be a good one.