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Why is it that with over 60 years of improvements in cameras, lens sharpness and film grain, resolution and dynamic range that no one has been able to equal what Ansel Adams did back in the 1940s?

在安塞尓所处的时代，并没有像Photoshop这样的计算机软件，那么他是如何创造出那些无与伦比的作品？

Why is it that with over 60 years of improvements in cameras,lens sharpness and film grain, resolution and dynamic range that no onehas been able to equal what Ansel Adams did back in the 1940s?

为何在60年后的今天，当摄影器材不论是在照相机的功能、镜头的锐利度、底片的细致度以及解析度都已经改进到一定的程度，却仍然没有人能够取代或甚至拍出相同於安塞亚当斯在1940年代所拍摄的作品？

It was found that for large aperture ratios (the ratio of focal length of the primary to its aperture, as the f-ratio in modern cameras for instance), f/10 or more, the difference between spherical and paraboloidal mirrors was negligible in the performance of the telescope.

结果发现，大口径的比例（比例焦距初级到其孔径，由于架F -比率在现代相机举例来说）， f/10或更长时间，之间的差别球面和抛物面反射镜是微不足道的，在表现望远镜。

First of all, large-format cameras allow flexible adjustment, by shifting up, down or sideways of the front and/or back of the camera, and secure great apparent depth of field to obtain images freely. This provides photographers a sound basis for art creation. With relatively larger films, it is possible to obtain more raw data, which illustrate all the tiny details in the image.

首先，大画幅相机具有灵活移轴调整功能，通过对镜头的移轴和皮腔部位的倾斜、偏摆来调整视点，可以在清晰区域内获得自由图像造型，为摄影师们提供了广阔的创作空间；较大尺寸的底片，可获得大面积的RAW的数据，能很好地表现影像中极为细微的部分。

The 13 three-man ground teams were each equipped with one of two primary cameras —"either a Sony F900 HD camera or an Arri SR3 Super 16 high-speed camera," says Ward.

13队每三人一组的地面队伍均装备两款主要摄像机组中的一个------"或者是一台Sony F900 HD 摄像机，或者是Arri SR3 超级16高速摄像机"沃德说。

By setting two perspective cameras at the first molars of the upper jaw and using the OpenGL selection mode,the real-time collision detection with high efficiency between lower and upper jaws can be realized as the lower jaw rotates around the axis of the articulator.

该方法通过在上颌左右第一磨牙近中舌尖处建立透视视景体，利用O penGL的选择模式，可以实时地检测下颌模型绕牙合架转动轴线旋转过程中与上颌模型碰撞对位情况，效率很高。

If you go ashore|with your friends|and your cameras...

带着你的朋友和摄影机上岸

Mao's expression at that moment is almost perfect, and it comes not just from his total assuredness of the correctness of his political beliefs. He has also started to be worshipped by Western left-wing intellectuals and women; more and more people want to travel to Yan'an to meet him and capture his image with their cameras.

毛的眼神在这个时刻是接近完美的，这不仅在于他十分自信自己信仰的政治正确，他也开始受到西方左翼知识分子和女人的崇拜，越来越多的人想去延安见一下他，并用照相机拍摄他。

The Hubble Space Telescope and other astronomical devices are essentially specialised digital cameras.

哈勃太空望远镜和其他天文设备基本上是专业的数码相机。

I recommend Canon EOS DSLR cameras for long-exposure astrophotography because of their proven performance, low noise and ease of use in working with true raw files.

我推荐佳能EOS数码单反用于长时间曝光的天文摄影，因为它们已被验证的表现，低噪声与真正RAW文件（注：这点是针对尼康的RAW做了手脚来说的）的易用性。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了