User manual SIGMA 50-200MM F4-5.6 DC OS HSM

[. . . ] Please keep them clean to ensure proper connection. To avoid damaging the lens, be especially sure to place the lens with its front end down while changing the lens. The stabilizer unit will be placed to a specific position in the lens body and then shooting will be possible (stabilizer unit will switch to active status) regardless of the OS Switch position. [. . . ] Special allowance is made for this at the infinity setting. Zooming Rotate the Rubber grip on the zoom ring to the desired position. Using the Optical Stabilizer function it is possible to get sharp results at shutter speeds approximately 4 stops slower than you could without using the OS function. Press the shutter button halfway down, confirm the image in the viewfinder is stable then take the picture. (It takes approximately 1 second to produce a stable image from the time of depressing the shutter button halfway). Sony and Pentax fittings are not equipped with the Optical Stabilizer (OS) function. Do not use the Optical Stabilizer in the following situations: When the lens is mounted on a tripod. The Optical Stabilizer function is powered from the camera. If you are not using OS, please turn OFF the OS switch, in order to prevent unnecessary battery consumption. Be sure to turn the OS switch to the OFF position before attaching or detaching the lens to the camera. The OS continues to operate after you release your finger from the shutter button, as long as the exposure meter displays the exposure value. Never remove the lens or remove the camera’s battery while the image stabilizer is operating as this could damage the lens. Although the viewfinder image may appear to shake immediately after shooting and/or at the start of the flash charge cycle of the camera’s built-in flash, it will not cause any effect to the pictures. 4) 3 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. 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. [. . . ] When entering a warm room from the cold outdoors, it is advisable to keep the lens in the case until the temperature of the lens approaches room temperature. 5 Dimensions and weight include the SIGMA mount. The glass materials used in the lens do not contain environmentally hazardous lead and arsenic. [. . . ]