User manual PENTAX UCF G 10X24

[. . . ] 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. [. . . ] Do not look at the sun through the lens with the naked eye. If the lens emits smoke, smells of smoke or gives off heat, discontinue use immediately. Do not damage, bend, twist or pull on the cable. The flange back of this lens is factory adjusted for CS mount camera. 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. Fully open the iris by either of the following methods. This lens cannot be used on a C mount camera. Some cameras are C and CS mount compatible. refer to the Operating Instructions of the camera. Screw the lens clockwise into the camera. Loosen the lens from the tight position one full turn counterclockwise. Firmly push the lens towards the camera until a movement is felt. [. . . ] If the lens is not at the desired position, repeat the procedures and , and mount the lens firmly on the camera. Format size Mount Focal length Iris range Minimum object distance Driving coil Damping coil Driving voltage Temperature range 1/3 CS 4mm F2F64 0. [. . . ]