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⒊视场角控制所谓视场角,就是镜头视角,它指摄像机摄像管画面对角线两端与镜头构成的角度,或者指景物画面对角线两端与镜头构成的角度。镜头的视场角越大,在同等距离拍摄的景物范围也就越大。从镜头视场角定义知道,镜头视场角的大小与摄像管的画面大小和镜头的焦距长短有关,由于摄像机内的摄像管画面大小一般固定不变,因此拍摄时视场角的大小实际上由镜头焦距的长短所决定,焦距越长,其视场角越小;焦距越短,其视场角反而越大。
⒊ angle of view control The so-called angle of view, is the lens perspective, which refers to the camera camera tube angle between the two ends of the lens and the angle of the lens, or the two ends of the diagonal of the scene with the camera lens angle. The larger the field of view of the lens, the greater the range of subjects shot at the same distance. From the perspective of the lens field of view know that the size of the lens field of view with the camera tube screen size and the length of the lens focal length, the camera tube camera screen size is generally constant, so when shooting the size of the field of view angle The focal length of the lens by the decision, the longer the focal length, the smaller the angle of view; shorter focal length, but the larger the angle of view.