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SETTING THE EXPOSURE MODE



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SETTING THE EXPOSURE MODE
The sigma lens functions automatically after mounting to your camera. Please, refer to the camera instruction book.
FOCUSING AND ZOOMING
This lens features Sigma’s built-in Hyper Sonic Motor (HSM). The HSM enables quick and quiet autofocusing.

SIGMA AF and CANON AF

For autofocus operation, set the focus mode switch on the lens to the “AF” position (fig. 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.

NIKON AF , PENTAX AF and SONY

For autofocus operation, set the camera to AF mode and set the focus mode switch on the lens to the “AF” position (fig. 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.
◆ 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.


Pentax af type cameras
Depth of field scale



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