For connecting accessories to Oconnor platform rosettes on current and legacy fluid heads.
 
The Rosette Adaptor can be attached to any of the platform rosettes on any OConnor head to provide mounting points for a range of accessories such as monitors, handles & lens drive controls. It includes 3/8-16 thread, ¼-20 threads and a 60 tooth rosette for attaching accessories from a number of leading accessory brands. “