注：你正在编辑的一份前提条件指南。你所做的任何更改将影响包括此步骤的4指南。
正翻译步骤 1
步骤 1
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First, turn the camera upside down.
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Press the button located next to silver lens mount and rotate the lens counterclockwise.
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Pull the lens away from the camera body.
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