User manual SIGMA 30MM F1.4 DC HSM

[. . . ] If such an element is used vignetting will occur on the picture surface. If you use SD1 / SD1 Merrill digital camera, corresponding angle of view will be 45mm. DC (APS-C ) If you use SD15 / SD14 / SD10 / SD9 digital camera, corresponding angle of view will be 51mm. [. . . ] If you wish to focus manually, set the focus mode switch on the lens to the “M” position. You can adjust the focus by turning the focus ring. 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. aF AF AF 2 M AF AF 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. 4) GEGENLICHTBLENDE LENS HOOD A bayonet type detachable hood is provided with the lens. 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) When taking photographs using the built-in flash, it is advisable to remove the lens hood so as to avoid cutting off any of the flash output, which could cause a shadow in the picture. 4 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 FILTER PL 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. [. . . ] Sørg for at disse er rene for at sikre god forbindelse. For at undgå beskadigelse af objektivet, sørg da for at placere det med front nedad ved objektvskift. Vid objektivbyte, se till att objektivets front hålls nedåt för att undvika att objektivet skadas. [. . . ]