不过，也可能是一个类似照片、组合绝佳的镜头，演员在取景框内的位置恰到好处。
But also a well-composed shot that resembles a photograph, with the actors well positioned within the frame.
算好位置后，他们将相机紧贴前额或胸口，以保持镜头稳定。
They then hold the camera against their foreheads or chests for stability.
相反，许多镜头必须结合使用，其中每个镜头分别负责在截止位置拦截部分光线。
Instead, many lenses must be used in combination, where each lens does its part to have the light end up where it is supposed to.
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