Let's use a camera lens to explain the first one.

让我们用摄像头来解释第一个因素（聚焦）。

How can an installation use the camera's lens to frame a landscape?

装置如何使用摄像机的镜头来构图风景？

Right, OK. So, if I take this piece of paper, and I tried to hit the camera lens right in the middle. I can say: 'Bullseye! '.

对的，好。那么，如果我拿着这张纸，我试着击中相机镜头的正中间。我可以说：“扔中了！”

Then secondly, it passes a camera lens that helps us in focusing light rays and lastly, there is a camera film on which light is focused for a clear picture.

其次，它通过一个帮助我们聚焦光线的相机镜头，最后是相机胶片，光线聚集在相机胶片上，以获得清晰的图像。

" I heard this company is creating a camera lens for deep sea photography. Because my major was in engineering and my hobby is in photography, I believe this is the perfect position for me" .

“听说这家公司在做深海摄影的相机镜头。因为我的专业是工程， 我的爱好是摄影， 所以我觉得这个职位非常适合我” 。