User manual SIGMA 4.5MM F2.8 EX DC FISHEYE HSM

[. . . ] In order to get the maximum performance and enjoyment out of your Sigma lens, please read this instruction booklet thoroughly before you start to use the lens. It is recommended that either spot or center-weighted metering is used. [. . . ] If you wish to focus manually, set the focus mode switch on the lens to the “M” position. AF 2 M Please refer to camera’s instruction manual for details on changing the camera’s focusing mode. For Nikon, Pentax and Sony mounts, it is only possible to use AF with camera bodies which support motors driven by ultrasonic waves such as HSM. AF will not function if the camera body does not support this type of motor. With the camera set to the One-Shot AF (AF-S) mode, it is possible to manually override the autofocus while the shutter release button is pressed halfway. When operating this lens in manual focus mode, it is recommended that correct focus be confirmed visually in the viewfinder rather than relying on the distance scale. This is due to possible focus shift resulting from extreme changes in temperature which cause various components in the lens to expand and contract. AF This lens has a short focal length and gives a wide depth of field and wide focusing area in front of and behind the subject. If the subject is too small, it may not be possible for the camera’s AF sensor to focus on it. AF AF AF AF AF M 2 AF PREVENTION OF FLARE AND GHOST AF AF Because of the extremely wide angle of view of this lens, flare and ghosting may occur much more easily than with other lenses. When you take a picture with this lens, please pay special attention to flare and ghosting which can occur when shooting near or directly into the sun or other very bright lights. Please cut the gelatin filter, using the guide plate accessory as a pattern, and insert the filter into the filter holder at the rear of the lens. 3) ( ) BASIC CARE AND STORAGE Avoid any shocks or exposure to extreme high or low temperatures or to humidity. For extended storage, choose a cool and dry place, preferably with good ventilation. [. . . ] Vid objektivbyte, se till att objektivets front hålls nedåt för att undvika att objektivet skadas. J E The glass materials used in the lens do not contain environmentally hazardous lead and arsenic. [. . . ]