生活在二十世纪的人们.不用猜测没见过面的亲友的长相:也不必努力回忆自己儿时的模样;更不需要听着别人的描述去想象秀美如画的风景名胜.我们只要坐在家中.通过影集便能了解家庭成员和自己的成长过程;翻翻画册就能一览天下美景.而这一切的缔造者正是一百多年前发明并不断得到技术改良的照相机.是它将精彩一瞬变为永恒:是它将逝去的时光一一保存.它为我们的生活带来了乐趣.然而,随着信息时代的到来.相机界也发生了巨大的变革.刮起了数码风. People who live in the twentieth century do not have to guess what their unfriendly friends and relatives look like: nor do they have to work hard to remember what they looked like in their childhood, nor do they need to listen to other people’s descriptions to imagine picturesque places of attraction. At home, you can learn about family members and your own growth through the albums, flip through the pictures to see the beauty of the world, and it’s all about the camera that was invented and continuously improved over a hundred years ago. Transient to Eternity: It saves the passing time one after another, and it brings joy to our life.However, with the advent of the information age, great changes have taken place in the camera world.