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视角是指人类、动物或者镜头所能涉及、拍摄、看到的角度。视角愈窄,看到的视野愈小也愈清晰,视角越大则相反。人类的视角通常是120°,当集中注意力时约为25°。鱼一只眼的视角接近180°,两只眼加起来就有360°的视野。猎鹰在搜寻猎物时用宽视角,瞄准猎物时则用窄视角。
Angle of view refers to the human, animal or lens can be involved, shooting, to see the point of view. The narrower the angle of view, the smaller the field of vision seen, the clearer, the larger the angle, the opposite. The human perspective is usually 120 °, while focusing on about 25 °. The angle of one eye of a fish approaches 180 °, and the two eyes together have a 360 ° field of view. Falcons search for prey with a wide viewing angle, while targeting the prey with a narrow viewing angle.