[. . . ] In case you are unable to focus either at the shortest or longest focal lengths, adjust the back focus of the camera by the following method, referring to the Operating Instructions of the camera. [. . . ] Cover front of the lens with a ND filter according to the prevailing lighting conditions. ) Set the zoom lever at [mark] position, and the focus lever at [FAR] position, and then adjust back focus of the camera. Make focus adjustments with the focusing lever, confirming that objects are in focus across the entire zoom range, especially at the [TELE] and [WIDE] positions. â· Keep the lens away from dust, poisonous gas, moisture and salt. The lenses having CE marking on their bodies are conformity with the standards related to EMC directives by EU. The lens position is now adjustable counter-clockwise in about 340 degrees. [. . . ] The lens position is now adjustable counter-clockwise in about 340 degrees. [. . . ]