In1943, Carl Zeiss also developed a procedure to measure lens imagequality with so-called “MTF” curves (modulation transfer function), which numerous manufacturers today use for quality control.

1943年卡尔蔡司同样研发了一套利用MTF（调制传递函数）

youdao

The Carl Zeiss optical lens brings added clarity, while the dual LED flash lets you take great pictures day or night.

卡尔蔡司光学镜头将带来清晰，而双LED闪光灯，可让你把美丽照片白天或晚上。

youdao

In 1902, Carl Zeiss submitted a patent for what would eventually become the most famous photo lens of all time: the Tessar.

1902年，卡尔·蔡司提交了一份镜头专利，这项最终成为史上最著名的摄影镜头的专利就是——天塞。

youdao

Great looking images come easily when snapping them with the smartphone's 8.7MP camera featuring a high-quality, wide angle Carl Zeiss lens.

ENGADGET: Nokia announces the Lumia 928: 4.5-inch OLED display, OIS camera, xenon flash, available May 16th for $100 (video)

The Carl Zeiss lens not only delivers spectacular image quality all the way to the edges of each frame, it incorporates a near-silent in-lens shutter and is far more compact than comparable lenses of interchangeable design.

ENGADGET: Sony's Cyber-shot RX1 compact camera packs a full-frame sensor, 'fits in your palm' (hands-on)

In a series of tweets, he says that PureView itself is about "blending optics, pixels and image processing in new and different ways, " hinting at the high-end Carl Zeiss lens and the built-in image processing algorithms that are part of the 808 PureView's camera package.

ENGADGET: Is the Nokia Lumia 920 coming with 8-megapixel FauxView? (Update: Nokia's Imaging Head weighs in)