Hey guys how are you if you want to know what is spidercam and how does it works please see my this post .
Spidercam uses a state-of-the-art camera suspended from four wires – one in each corner of the ground – to follow the action.
It can pan 360 degrees while keeping level and also has a zoom function and image stabilisers.
It never drops below 10metres and will be lifted to the height of the stadium for goal kicks or when the keeper has the ball in his hands.
An operator controls the camera pitchside to provide birds-eye footage of the action.
The system has regularly been used in cricket which has flagged up some unusual issues.
Australia skipper Steve Smith blamed a missed catch on a supporting wire being in his sight.
And if a ball strikes the camera it must be called dead which led to the reversal of a catch after the batsman noted his shot deflected off Spidercam.
The cameras have been used in rugby union, tennis, NFL, swimming and Olympic volleyball as well as non-sporting events such as the Eurovision Song Contest