You change the shutter speed in shutter priority mode the same way as you did in manual mode: Rotate the command dial and look for the changing Numbers in the LCD status screen.

调整快门的方法和在手动模式时一样：转动指令盘并且查看LCD上的数字变化。

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Aperture Priority Auto Mode and properly set shutter speed indicator lit.

光圈优先，快门优先，手动模式。

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If you are shooting fast-moving objects, please check the shutter speed and switch to shutter-priority mode if necessary.

如果你是拍摄快速移动的物体，请检查快门速度和切换到快门优先模式，如果必要的。

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"AF Limit Mode" can adjust the range of auto focusing and "Shutter Priority AF" offers faster focus adjustment by stopping the live view to increase the speed of the auto focusing.

ENGADGET: Sigma DP3 Merrill packs a Foveon X3 sensor and a fixed F2.8, 75mm-equivalent lens