User manual SIGMA 10-20MM F3.5 EX DC HSM

[. . . ] 1 An image sensor element larger than those corresponding to APS-C cannot be used in digital cameras or 35mm SLR cameras. If such an element is used vignetting will occur on the picture surface. If you use SD9, SD10 or SD14 digital cameras, corresponding angle of view will be 17-34mm. [. . . ] 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. This lens also permits manual focusing even in the autofocus mode. 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. Special allowance is made for this at the infinity setting. Zooming Rotate the Rubber grip on the zoom ring to the desired position. FLASH PHOTOGRAPHY Built-in flash of your camera may not cover angle of view of this lens, and this may cause light fall-off at the corners. When external flash is used, flip wide panel of your flashgun down to cover flash’s head, before taking picture. This lens hood helps to prevent flare and ghosted images caused by bright illumination from outside the picture area. Attach the hood and turn clockwise until it stops rotation. 3) In order to place the lens and hood into the storage case, you must first remove the hood, then replace it on the lens in the reverse position. FILTER Only one filter should be used at the time. Two or more filters and/or special thicker filters, like a polarizing filter, may cause vignetting. When using a polarizing filter with AF camera, use the “circular” type. BASIC CARE AND STORAGE PL Avoid any shocks or exposure to extreme high or low temperatures or to humidity. [. . . ] Sørg for at disse er rene for at sikre god forbindelse. For at undgå beskadigelse af objektivet, sørg da for at placere det med fronten nedad ved objektivskift. Vid objektivbyte, se till att objektivets front hålls nedåt för att undvika att objektivet skadas. [. . . ]