The focal length of a given lens is different for different colors.

The unsteadiness of air becomes prohibitive only if instruments with large focal length are used.

只有在使用长焦距的仪器时,才不允许空气的不稳定.

C: Can I control the focal length?

我能控制焦距 吗 ?

The scanner's baseline correction including focal length adjustment and brightness, contrast white balance, color, tuning, etc.

扫描仪的基准订侧包含焦距调度和平度 、 差比度、不暗不均 、 颜色调校等.

You can set focal length for Lens distortion compensation.

您可以为镜头失真补偿焦距.

At present, some difficulties are encountered in measurement of long focal length of lens.

目前, 透镜长焦距的有效测量还存在一些难题.

When evaluating the focal length, all the images are turned upside down.

当评估焦距的时候, 所有的图像颠倒被转.

Focal length is the distance between optical centre and principal focus.

焦距就是镜片中心和焦点之间的距离.

Figure 4. Relationship Between Focal Length, FOV, Sensor Size, and Working Distance.

图4. 焦距, 视野FOV, 感应器大小, 和工作距离间之关系.

A typical lens has a focal length ( f ) of 625 mm.

常见镜头的焦距 ( f ) 为625毫米.

Determine the focal length of your lens.

决定你镜头的焦距.

This photogragh is shot by lens with a long focal length.

这张照片是用长镜头拍摄的.

After many experiments on the scanner's focal length error which makes up his mind.

众次测验考试后,差扫描仪的焦距差错也不离心洋有数了.

The focal length of the camera lens plays an important role in photo criteria.

摄影机镜头的焦距在摄影规范中起着重要的作用.

This dissertation at meeting the needs of designing long focal length space camera.

本文主要研究了长焦距三反射式望远物镜的设计.

The percentage depends on the conditions, shutter speed and focal length.

二者的比例取决于拍摄时的情况, 快门速度和焦距.

The focal length is set to Flat stitch in the Properties window.

焦距在特性窗囗中被设定成平坦的一针.

A novel technique for self calibration of cameras with varying focal length is introduced.

提出一种运动变焦相机分步自标定的方法.

The easiest way to get a pleasing background is to focal length and a wide aperture.

背景也是一副图片的重要元素之一;通常背景应该尽有可能的干净,不然很容易干扰对主体的注意力.

In what sense was the discovery of America a focal point in history?

从什么意义上讲美洲的发现是历史上的一个重大事件 呢 ?

Chengdu thanked the regiment already arrive at Dalian in today, prepared this focal point competition.

成都谢联队在今天已经到达了大连, 准备这场焦点比赛.