User manual PENTAX 645 AUTO BELLOWS

[. . . ] Some cameras are C and CS mount compatible. refer to the Operating Instructions of the camera. Screw the lens clockwise into the camera. [. . . ] Keep turning the lens until the clutch reaches its stop. The lens position is now adjustable counter-clockwise in about 360°. Turn the lens until the correct position is achieved. When removing the lens, keep turning the lens counter-clockwise until the lens comes off. For your safety on use of a lens Before operating, pay special attention to the following remarks. This alerts users to the possible risk of personal harm. This alerts users to the possible risk of personal and material harm. Auto-iris sensitivity can be adjusted in accord with the camera. When an image is too bright, adjust it by either of the following methods. set the electronic shutter of the camera to high speed. Cover front of the lens with a ND filter according to the prevailing lighting conditions. ) Set the focus ring at [INFINITY] position and the zoom ring at [WIDE] position, and then adjust back focus of the camera. set the zoom ring at [TELE] position and make focus adjust by the focus ring. Repeat the procedures and until images maintain their focus throughout the zoom range. Do not use organic solvents, such as thinners, alcohol or benzine to remove stains from the lens. ⷠUse a blower or a clean lens brush to remove dust. [. . . ] ⷠUse a blower or a clean lens brush to remove dust. When grease or fingerprints are on the lens, wipe them off with a lens cleaning paper and lens cleaner gently forming a swirl from the center to the circumference. Avoid dropping, strong vibration, shock and pressure on it. [. . . ]