User Manual

F.B. (Back Focus) Adjustment

F.B. (back focus) of this lens can be adjusted in the following procedures.

Before starting, select an object with sharp contrast at a distance* that facilitates the

adjustment work.

* Recommended object distance range: 3 to 6 ft.

Remove three screws

and remove the F.B.

adjuster cover as in the

right gure.

Note: Be sure to keep the

screws for later reattachment.

Mount the lens on the

camera and turn two

F.B. adjuster screws

counterclockwise one

revolution as in the right

gure.

CAUTION

Be sure to securely mount the lens on

the camera mount.

Note: Be sure not to remove

the screws.

Screws x 3

F.B. adjuster

cover

Screws x 2

360 degrees