它装有广角镜头和长焦距镜头。
这是个长焦距镜头。
目前，透镜长焦距的有效测量还存在一些难题。
At present, some difficulties are encountered in measurement of long focal length of lens.
目前，大口径长焦距反射镜焦距的精确测量存在很大难题。
At present, some difficulties are encountered in measurement of long focal-length of mirrors.
实验结果表明，这种方法能够实时地、非常精确地测量长焦距。
Experiment data demonstrates that this method can be applied to the real-time long focal length measurement with high accuracy.
在正确路线的指引下，我们成功地设计和试制了一种新型长焦距大型照相机。
Correct under the guiding of route we successfully design and have trial-produced the one kind of new long large-scale camera of focal distance.
一种长焦距大视场无活动部件的微型目标探测系统，属于目标探测技术领域。
The invention is a tiny object detecting system with long focus distance and large view field, which belongs to target detecting technology field.
描述了对长焦距布拉格-菲涅耳透镜与可变曲率半径反射镜组合所做的实验研究。
An experimental investigation of the combination of a long focal distance Bragg-Fresnel lens with a bimorph mirror is described.
以肺癌细胞筛选为例，提出用长焦距、高倍率的傅里叶变换系统和线性判别处理。
In that case, Fourier transform system with long focal length and high power lens and method of linear decision are proposed.
而当你迫不得已使用不稳的三角架或者长焦距镜头，镜片稳定所需时间会显著增长。
When forced to use wobbly tripods (never desired) or long focal lengths, the stabilizing time can increase significantly (~8 seconds).
其中光学系统是该设备的重要组成部分。它是一个长焦距、大视场的投影光学系统。
The optical system is a projective optical system with long focus and large field of view, and is an important part of the equipment.
本实验是利用两块空间频率相同的黑白光栅产生的莫尔条纹来测量长焦距透镜的焦距。
In this experiment, we use two gratings with the same frequency to generate Moire fringes and use them to measure the long focus length of lens.
提出通过对龙基光栅的塔尔博特效应所产生的莫尔条纹角度的计量来测量长焦距的方法。
A new method for long focal length measurement is presented, which is accomplished by obtaining the Angle of moire stripe formed by Talbot effect of Ronchi grating.
依据新配置的光应力系统试验要求，需设计一套大视场、宽光谱、长焦距的微光准直物镜。
Based on the new configuration of optic stress system, we need to design a wide bands and long focal night vision collimating lens.
本文介绍一种利用长焦距显微镜观察玻璃薄片由镀膜淀积引起的形变来测量薄膜应力的方法。
This paper introduces a method for the measurement of stress of thin film. In this method a long focal distance microscope is used and deformation of the thin film on thin glass sheet is observed.
焦距是透镜最重要的光学参数，应用泰伯—莫尔法测量长焦距透镜焦距具有重要的实践价值。
Focal length is the important optical parameter of optical lens. It is valuable that methods based on Talbot effect and Moire technique are applied for measuring the long focal of lens.
长焦距、大画幅、高分辨力胶片摄影相机要求在给定的摄影周期内快速、精密地将胶片展平在片台上。
In a long focus, large frame and high resolution film camera, its film is demanded to be flatted quickly and precisely on a film flatness plate within a given time in taking a photograph.
叙述一种用于测试大口径、长焦距光学系统杂光系数、渐晕系数、像面照度均匀性等光学参数的检测方法。
A method is introduced for testing stray light coefficient, vignetting coefficient and image surface uniformity optical system with large aperture and long focal length.
本文在三镜反射光学系统的几何光学理论基础上，尝试性进行了小尺寸、大视场、长焦距全反射系统的设计。
An all - reflective system with compact structure and wide field of view is designed on the basis of geometry optical theory.
仿真数据显示测量误差在0.15%以内，证明了该焦距测量系统对大口径长焦距反射镜焦距有很高的测量精度。
At last, emulated data shows that the measurement error is below 0.15%, the data obtained by emulation shows the high precision of this measurement instrumentation.
图像稳定系统减少了由于相机抖动造成的模糊现象，使得即使在弱光以及长焦距下拍摄的照片也可以非常清晰、漂亮。
Image stabilization systems reduce the blur caused by camera shake, allowing sharp pictures to be taken even in low light or at long focal lengths.
先前的一张焦距短，第二张他用了长焦。
For the first shot he used a shorter focal length and the second shot he used a longer one.
我通过使用宽角焦距应该使建筑形状弯曲到何种程度，或者如果我想避免它，使用更接近标准值乃至长焦镜头该怎么做。
How deep I should distort the building shapes by using wide angle focal length or if I should avoid it and use more close to standard values or even a telelens.
焦距长底随透镜的厚度而变化。
该系统具有结构简单、质量轻、口径大、焦距长、失真小以及良好温度适应性等特点。
Through the system optimization, the analysis of aberration and differential thermal, the designed system is simple, light weight, large aperture, long focal, and good temperature adaptability.
该系统具有结构简单、质量轻、口径大、焦距长、失真小以及良好温度适应性等特点。
Through the system optimization, the analysis of aberration and differential thermal, the designed system is simple, light weight, large aperture, long focal, and good temperature adaptability.
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