This kind of photo was called a Daguerreotype.

很快的，很多人开始用这种摄影方法。

Poor papa's daguerreotype atelier he told me of.

我那可怜的爹告诉我，他曾搞过一间银板照相的暗室。

Then came the invention of daguerreotype photography.

后来，达盖尔照相术发明出来。

Daguerreotype photography used a copper plate coated with silver iodide to take a picture.

达盖尔照相术是用镀银的铜板来照相。

But the daguerreotype could only make positive images so copies had to be made by taking another photo.

但银版摄影只能产生正像，所以要复制照片时，只能再拍一次照片。

Daguerre:French artist and inventor of the Daguerreotype process for obtaining positive photographic prints.

达盖尔：法国艺术家和发明家，发明了银版摄影术，能洗出照片的正画。

Daguerre: French artist and inventor of the Daguerreotype process for obtaining positive photographic prints.

达盖尔：法国艺术家和发明家，发明了银版摄影术，能洗出照片的正画。

Daguerre: French artist and inventor of the daguerreotype process for obtaining positive photographic prints.

达盖尔: 法国艺术家和发明家,发明了银版摄影术,能洗出照片的正画.

He developed something called a daguerreotype, which used a silvered plate and which produced a sharper image.

他发明的技术称之为银版摄影术，就是使用镀银的铜板来产生清晰的图像。

Because the daguerreotype is much more fickle and dangerous to work with, there are fewer artists making daguerreotypes.

因为达盖尔银版摄影法在制作过程中非常不稳定并且伴随这一定的危险，所以很少有艺术家去使用。