User manual PENTAX C814E

[. . . ] Do not use organic solvents, such as thinners, alcohol or benzine to remove stains from the lens. [. . . ] If the lens is not at the desired position, repeat the procedures and , and mount the lens firmly on the camera. ALC may not function due to backlight compensation and AGC of the camera or cameras with a digital video output. For your safety on use of a lens Before operating, pay special attention to the following remarks. When images are too dark, too bright or there is no image, make the adjustment according to the following table. If the lens emits smoke, smells of smoke or gives off heat, discontinue use immediately. LEVEL may not be lowered in some cases due to backlight compensation and AGC features of the camera being switched on. ⷠWhen the AGC of the camera is switched on, there are some instances where the level does not alter and the image quality deteriorates, even when the "LEVEL" adjustment variable resistor is turned all the way to "L" side. Turn the "LEVEL" variable resistor towards "H" until the image quality improves. [. . . ] 0V(p-p) at V signal level ±20% at V signal level -20 - +50 [. . . ]