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科学美国人60秒:新款光场单反相机-托福听力下载

2017-01-20 14:01:00来源：科学美国人60秒

点击查看>>科学美国人60秒音频：新款光场单反相机

　　科学美国人60秒中英文翻译：新款光场单反相机

　　科学美国人60秒英文文本

　　Until a few years ago even the best digital camera couldn't fix an out-of-focus photo.

　　A start-up called Lytro introduced a solution to this in 2012 when they created a camera that lets you snap pictures and play with the focus afterward.

　　That neat gadget cost $400 and looked like a mini telescope.

　　A new version expected this summer will offer additional advances.

　　Illum.jpg

　　Called the Lytro Illum, it looks like a serious SLR camera and has a 1,600 price tag.

　　The Illum still uses a special sensor covered by a matrix of microlenses, which capture the entire light field.

　　That's an enormous amount of data about the color, brightness and direction of all light rays within a frame.

　　The camera doesn't have a focus mechanism—it comes up with an image based on a massive data analysis.

　　You can then go in and change its choices.

　　The Illum improves on the original Lytro with a much faster sensor and processor, the same one Samsung uses in its new Galaxy S5 smartphone.

　　Probably more camera than most of us need.

　　But a lifesaver when you screw up a once-in-a-lifetime photo.

　　中文翻译请点击下一页

本文关键字: 科学美国人60秒 科学60秒下载 托福听力

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