ELi5 How a cameraman at a sports event able to track a fast moving ball with such a great focus on it?
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Worked with people who make NFL TV programmes, the cameras they were using 4 years ago were 4k cameras. The camera operator has a screen with a mark which shows the centre of the frame – operator just has to keep the ball in the cross.
There’s an additional rectangle with dotted lines which shows the 10% border of the HD image, The operator tries to keep the ball in that box.
There’s another operator who can move the actual HD box if that’s needed too.
The actual lenses will have image stabilisation features that ensure the image is focused as the camera tracks the action
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