What was the first lens you bought for your DSLR?
你为自己的单反购买的第一个镜头是什么镜头？
The first lens group (G1) receives a light flux entering along a first optical axis (A1).
第一透镜组(G1)取入沿第一光轴(A1)入射的光束。
The first through fourth lenses are arranged sequentially from the object, and an aperture diaphragm is disposed on the object side of the first lens.
第一至第四透镜从物体顺序排列，孔径光阑置于第一透镜的物侧上。
One of the lenses is a first lens with a high number of pixels for photographing a still image, and the other lens is a second lens for photographing a moving image.
镜头的一个是一个像素的静态图像拍摄大量的第一只镜头，另一个镜头是拍摄动态影像秒镜头。
The Petzval's portrait lens is the first mathematically calculated lens.
佩兹伐人像镜头是最早的数学计算镜头。
The cosmic lens phenomenon was first predicted by Albert Einstein's theory of general relativity.
阿尔伯特·爱因斯坦在广义相对论中第一个预测了这种宇宙透镜现象。
The time was later reduced with the "faster" lenses such as the Petzval's portrait lens, the first mathematically calculated lens.
后来随着像佩兹伐肖像镜头这样的“快镜头”（最初的数学计算镜头之一）的应用这“长时间”才得以缩短。
He told me this just after I bought my first 70-200mm lens.
他告诉我的那时候我刚买了第一个70- 200 mm的变焦镜头。
At first he thought they might be some kind of stain, like maybe a fly landed on the lens of the satellite.
起初他以为这可能是一些污迹，比如一架降落在卫星镜头上的飞机。
The first, phakoemulsification, uses a tiny ultrasound probe to remove the lens.
第一个是晶体乳化技术，它使用一根细小的超声波探针去移除晶体。
First we must find the focus of a lens.
首先我们需要找到透镜的焦点。
There are many, many different lenses available, but Gampat recommends that first-time DSLR owners start off with a simple 50mm prime lens .
市面上有种类繁多的镜头，但Gampat推荐首次购买单反的摄友从简单的50mm定焦镜头入手。
The M8, the first digital member of the M family, was released in 2006. The asking price — $4, 800, without a lens — was enough to make it a major investment for any photographer.
2006年，第一个数码家族成员M8上市了，售价为4800美元，且不含镜头，这对任何摄影者来说都是笔不小的开支。
First off there is a quick introduction to de-lensing the plates, and getting them tracked, including a workflow for re-applying the lens distortion.
首先有一个快速入门的透镜板，并让他们跟踪，包括重新将镜头畸变的工作流。
First love, always some Qing my camera lens, each recall , sweet taste is thought of , make your sense of taste do not work.
初恋时，总是有一些卿卿我我的镜头，每一次想起来，甜甜的味道涌上心头，使你的味觉失灵。
Not used to being in front of a *lens, he felt *flustered after just the first question, which affected the rest of his interview.
由于他并不习惯面对镜头，第一个问题就让他感到十分慌张，而这也影响了他的整场面试表现。
By assuming the weak lens focal length expression to be the first term in a power series a simple and accurate formula can be derived for the objective focal length of a magnetic electron lens.
用假设弱透镜焦距表达式是一个幂级数中的第一项的方法，可以导出相当准确且便于实用的电磁电子透镜物镜焦距公式。
According to the company, the first system attempts to compensate for camera shake by moving a lens in time with movement of the camera.
依照索尼公司的介绍，第一种系统设法通过在瞬间移动镜头来防止相机的抖动。
When I want to take a close-up with the most recent, and expensive, DSLR, I have to go to the trouble of changing the lens first.
当我想用最新最贵的数码单反机拍近景时，我不得不先很麻烦地换镜头。
First, based on the theory of Fresnel diffraction, the diffraction patterns are analyzed when the point source at the front focus or it's nearby of the lens.
首先，利用菲涅耳衍射理论，分析了无衍射成像系统中点光源在透镜焦点及焦点前后所产生的无衍射光斑形式。
Particularly, the sales of first album "Life Thru a Lens" were disappointing.
特别是他的第一张专辑“透过镜头所看到的生活”的销量令人失望。
The Pentax ME-F, which used focus sensors in the camera body coupled with a motorized lens, became the first autofocus 35 mm SLR in 1981.
宾得我，男，该传感器用于集中在机身加上机动镜头，成为第一个自动对焦35毫米单镜反光相机于1981年。
First they have Knoll Unmult, which is a free little plugin that comes along with Knoll Light Factory to knock out the black on solids with lens flares on them.
首先他们诺尔unmult，这是一个免费的小插件来一起诺尔轻厂淘汰的黑色固体的镜头耀斑他们。
The first stage of optical concentrator 200 is a meniscus lens 202 and the second stage is a dome lens 204, to which is mounted the wavelength converting element 110.
光学集中器200的第一级是弯月透镜202且第二级是半圆状透镜204，波长转换元件110安装到该半圆状透镜204上。
The first inosculation surface is opposite to the second inosculation surface, and the two respectively comprise the shapes which are inosculated with the two opposite surfaces of the lens.
该第一吻合面与第二吻合面正对，且分别具有与该透镜的两相对表面相吻合的形状。
The first inosculation surface is opposite to the second inosculation surface, and the two respectively comprise the shapes which are inosculated with the two opposite surfaces of the lens.
该第一吻合面与第二吻合面正对，且分别具有与该透镜的两相对表面相吻合的形状。
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