Review on TetherBlock Arca Graphite Connection Photography by Jeremy Bradford

Does its job very well but you have no slide adjustment when you attach it to the camera and it closes the Nikon d750 battery door. You have to dismount when your battery dies. The only workaround is to open the battery compartment and leave it open during use. It's a tight fit, but it works. However, I would not do it outdoors, everything is fine in the studio. The TeatherBlock had to take the battery door issue into account in the design. I have an L-mount (tripod) that allows for adjustment and placement on the camera, but no cable routing.