If you want to mount accessories on the rosette on the side of your FS-700 we have the solution - the Rosette Post. This rosette has a counter-bored hole through the center allowing you to fasten it to the side of the camera on the Sony factory rosette. From there you can add just about any of our 15 mm based blocks (sold separately). Includes one 1/4-20 X 3/4 fastener.