I watched a video on Kelby Training by Dave Black. In it, he said he used one of his older L-Brackets from some other camera and grip. RRS usually puts an imprint on their brackets. Dave said there weren't any markings on the one he was using, so I'd assume it is a Kirk bracket?
Just thought I might pick up a used one on eBay for much less this time around if I knew which one worked.
I tried an old D300 grip just now and it doesn't allow easy access to the side panel for the HDMI and USB3 ports. I seldom use those ports, so maybe it'd work okay for the short term.
#1. "RE: Legacy L-Bracket for D800 and Grip?" In response to Reply # 0
Powder Springs, US
I use a quick release on my R-Straps and thought I'd try my Kirk plate for the MB-D200 until I get the grip and L Plate. The problem is that even though I don't detect any undo stress on the D800 when tightening the plate down, it has enough play between the anti-twist lip and body that the anti-twist probably won't work. My fear is that the plate's screw will loosen as the camera's weight causes twist.
So....keep an eye on it. It will probably tide you over for awhile, if you are careful.
Scott Chapin Powder Springs, GA, USA Nikonians Team Member