INTRODUCING THE ROCK LOCK FOR THE ARRI TRINITY 2.
 
The Rock Lock slides onto the top of the Trinity 2 head and locks the roll axis so that Operators and Camera Assistants can build camera, swap lenses, and more without the head moving on them. It has 3 passive through holes so that you can install a string and hang the Rock Lock from your dock when not in use.
 
The Rock Lock utilizes the Arri SSB-4 to prevent the head from spinning. Please contact me if you do not have an SSB-4 and I can print a similar part that allows you to use the Rock Lock.
 
The Rock Lock is not intended to lock the roll axis while actively operating the Trinity 2.