User manual PENTAX AF240Z FLASH

[. . . ] ⷠKeep the lens away from dust, poisonous gas, moisture and salt. Metering method of the auto-iris can be linearly adjusted from average metering to peak metering (Pk). [. . . ] In case contrast of images is high or low, make adjustment according to the following table. Images ALC adjustment direction To make contrast lower Clockwise to (Pk) To make contrast higher Counter-clockwise to (Av) Please Note: · ALC may not function due to backlight compensation and AGC of the camera or cameras with a digital video output. Keep turning the lens until the clutch reaches its stop, and tighten the lens with max. The lens position is now adjustable counter-clockwise in about 330°. When removing the lens, keep turning the lens counter-clockwise until the lens comes off. Do not install the lens in a place where vibration and shock are expected. 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 ring at [TELE] position and the focus ring at [FAR] position, and then adjust back focus of the camera. Make focus adjustments with the focusing ring, confirming that objects are in focus across the entire zoom range, especially at the [TELE] and [WIDE] positions. [. . . ] ) Set the zoom ring at [TELE] position and the focus ring at [FAR] position, and then adjust back focus of the camera. Make focus adjustments with the focusing ring, confirming that objects are in focus across the entire zoom range, especially at the [TELE] and [WIDE] positions. [. . . ]