Even the simple trilobite has an eye (complete with its doublelens system) that's considered an optical miracle by today's standards.
按照今天的标准，即使是简单的三叶虫，它的眼睛(完美的双镜头系统)也是一个光学奇迹。
2
Make sure the camera lens is at eye level or just slightly higher. Any lower and you'll look like you have a double chin.
保证相机的镜头是在你眼睛或者是稍高的水平线上，比这个水平低一点的话都会使你看起来有双下巴。
3
The HS350 has a 12x optical zoom lens and, like newer camcorders, records 5.1-channel surround sound; it can double as a still camera for 10.6-megapixel shots.