Your camcorder should have these basic features: autofocus, playback facility, zoom lens.

你的便携式摄像机应该具有这些基本特征：自动调焦、回放及变焦镜头。

I got a camera with a zoom lens.

我有一台变焦相机。

I have a camera with a zoom lens.

镜头会把图像进一步放大。

It has a built-in zoom lens as well.

它也有内置的变焦镜头。

Has a capacity of 5 optical zoom lens.

拥有5倍光学变焦能力镜头。