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VZ-EFCU Adapter Instructions 

 
 
Items included with the VZ-EFCU Adapter kit are the  
Aluminum Universal Bracket Assembly and Spacer.  
 
 
 
 
 
 
 

First, determine which gear you need to use and attach it to the motor.  The Canon gear is marked “C” and the Fujinon is 
marked “F”. For the SonyEX series of cameras, you will use the “F” gear. 1) Remove the screw in the center of the motor 
spindle.  2) Install the appropriate gear.  3) Replace the screw in the motor spindle.  

 
 
  

  

 
 
 

Un-screw (

A

) the Focus ring gear and then placing it around the focus ring on the camera, then re-attach the screw and 

tighten until snug (

B

). Be sure that focus ring gear is lined up centered & symmetrically with the Focus ring on the Camera 

(

C

). 

 
 

 

 

 

 

 

 

 

    

(

B

)

 

 
 
 
 

                     

(

A

)                                 (

B

)

 

 
 

 

 

 

 

 

 

 

 

 

 

 

 

    

(

C

)

 

 

 

 

 

 

 

 

 

 

    

 

InCorrect 

 Correct 

 
Now slide the Bracket with gearbox (

D

) onto your mattebox rods and line up the gear with the focus gear ring keeping the 

block about ½” away from the focus ring on the camera (

E

). Now lock down the lower ratchet bolt to hold in place (

F

). 

 

Note: Bracket comes standard to 
fit 19mm mattebox rods. When 
using 15mm rods you will need 
to use the provided spacer.  

 
          (

D

 

 

 

 

          (

E

                       (

F

)  

 
 

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