|Border collie herding ducks|
Stock Dog Trials
To get sharp pictures of subjects that are constantly moving, you need to select a fast shutter speed. As the dog moved the herd of ducks through the obstacle course, I set the shutter speed to 1/1000 second. I also raised the ISO slightly from 100 to 200 ISO. In addition, a wide aperture of f/5.6 let in lots of bright sun, helping me achieve a good exposure with a really fast shutter speed.
I also set the camera to continuous drive to enable me to make a burst of pictures when the action was interesting. And I turned on continuous auto focus so the camera would track the dog, keeping it in focus.
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