A method of focusing a camera with a movable field of view, the camera monitoring a scene, the method comprising: obtaining a current field of view setting corresponding to a current field of view of the camera, the current field of view setting being obtained at a first point in time, retrieving, based on the obtained current field of view setting, focusing data pertaining to a plurality of focusing methods that was previously used to focus the camera for one or more previous field of views, at least partly overlapping the obtained current field of view, by accessing a focusing assisting database, comprising a plurality of camera focusing entries, wherein each camera focusing entry comprises a respective previous field of view setting corresponding to a respective previous field of view, and thereto associated focusing data pertaining to the focusing method that was previously used to focus the camera for the respective previous field of view, characterised in that the respective camera focusing entry further comprises a point in time having a property of being a reoccurring point in time, selecting, based on the retrieved focusing data, a focusing method among the plurality of focusing methods, wherein the selecting of focusing method is based on the retrieved focusing data and a correlation between the first point in time and the point in time of the respective camera focusing entry, such that a focusing method of a camera focusing entry having a point in time with a high correlation in time to the first point in time is selected over a camera focusing entry having a point in time with a lower correlation, and focusing the camera using the selected focusing method. obtaining a current field of view setting corresponding to a current field of view of the camera, the current field of view setting being obtained at a first point in time, retrieving, based on the obtained current field of view setting, focusing data pertaining to a plurality of focusing methods that was previously used to focus the camera for one or more previous field of views, at least partly overlapping the obtained current field of view, by accessing a focusing assisting database, comprising a plurality of camera focusing entries, wherein each camera focusing entry comprises a respective previous field of view setting corresponding to a respective previous field of view, and thereto associated focusing data pertaining to the focusing method that was previously used to focus the camera for the respective previous field of view, characterised in that the respective camera focusing entry further comprises a point in time having a property of being a reoccurring point in time, selecting, based on the retrieved focusing data, a focusing method among the plurality of focusing methods, wherein the selecting of focusing method is based on the retrieved focusing data and a correlation between the first point in time and the point in time of the respective camera focusing entry, such that a focusing method of a camera focusing entry having a point in time with a high correlation in time to the first point in time is selected over a camera focusing entry having a point in time with a lower correlation, and focusing the camera using the selected focusing method.