A push button extends into the end ring and has a lens cap.

一个按钮伸进该端环，并具有一个透镜盖。

youdao

I noticed and heard kids playing in front and behind me. But I was focused on my camera, fiddling with the film, cleaning the lens cap, checking the battery, adjusting the Settings.

我留意并听到一群孩子正在我的周围玩耍，但我正把注意力集中在照相机上，在摆弄胶卷，清洁镜头，检查电池，调整设置。

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In my haste, I simply could not recall having removed the lens cap.

当时我慌里慌张的，完全没办法回想起来，自己摘过镜头盖了没。

youdao

Let's hope Google or a third-party company invents some sort of artful lens cap for the camera.

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There's also a sleek, matching black LC-63A lens cap that opens and closes automatically whenever you activate the camera.

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But with the lens cap still on.

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