This is the gear drive tilt option for the mkTR Professional camera mount.  This allows for smooth tilt movements with heavier cameras like the Canon T3i/600D.

It is pre-assembled with a Hitec HS-5245 digital servo that has been modified to allow for 95 degrees of tilt travel for the camera.

It replaces the standard direct drive servo system and is a direct bolt on for the mkTR Professional camera mounts purchased after August 1st, 2011.  mkTR Professional camera mounts purchased prior to August 1st, 2011 may require you to simply drill four holes in the camera arch to mount this gear drive.