I have been a big fan of Really Right Stuff for many years, so I’m not selling this because I don’t think it’s a great accessory. After I purchased it I decided I wanted the L-bracket, and replaced this smaller/lighter/more compact one with one of those.
I highly recommend this bracket for a Canon 5D MK3, if you don’t want or need the L-bracket. Here’s the link to the RRS page that shows this item. Fully compatible with any Arca-Swiss style quick-release system. It’s in great condition, and I’ll pack it up and handle the shipping for the first person (inside of the US!) who sends me $35 via paypal. Just send an e-mail to me at georgej@gmail.com, and let me know that you want it.
P.S. This plate works incredibly well with the Camdapter ProStrap. Also, this is the manufacturers’ photo. The unit I have is in perfect condition – with very minor handling wear – but it doesn’t look this shiny. :-)