User manual SONY SAL55200

[. . . ] If circumstances necessitate leaving the lens in sunlight, be sure to attach the lens cap. ⷠBe careful not to subject the lens to mechanical shock while attaching it. [. . . ] When you use lens, the corners of the screen become darker than the center. To reduce this phenomena (called vignetting), close the aperture by 1 to 2 stops. You are cautioned that any changes or modifications not expressly approved in this manual could void your authority to operate this equipment. When focusing manually, set your camera to the manual focus and rotate the focusing ring while looking through the viewfinder. Do not rotate the focusing ring all the way to the end when focusing manually, even at infinity. If your lens is brought directly from a cold place to a warm place, condensation may appear on the lens. To avoid this, place the lens in a plastic bag or something similar. When the air temperature inside the bag reaches the surrounding temperature, take the lens out. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: ­ Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. If the lens gets dirty, brush off dust with a lens blower and wipe with a soft, clean cloth (Cleaning Cloth KK-CA (optional) is recommended). [. . . ] This lens is equipped with a distance encoder. The distance encoder allows more accurate measurement (ADI) by using a flash for ADI. [. . . ]