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- Like the ZEISS lenses for motion picture, ZF lenses feature unusually high mechanical quality, fixed focal length, very precise manual focussing, reliability, and exceptional durability. 如同电影用的ZEISS镜头,ZF镜头的特色就是非常高的机械品质,固定焦长,非常准确的对焦系统以及高度可靠性,并且非常耐久。
- fixed focal length 固定焦距
- 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。
- C: Can I control the focal length? 我能控制焦距吗?
- What is the best focal length for bird photography? 拍摄鸟儿最适合的焦距长度是多少?
- The focal length of a given lens is different for different colors. 一个特定的透镜的焦距因颜色的不同而不同。
- 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。
- This photogragh is shot by lens with a long focal length. 这张照片是用长镜头拍摄的。
- 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。
- Zoom lens A lens whose focal length can be varied continuously over a substantial range.One zoom lens can replace several fixed focal-length lensed, but results are likely to be inferior. 变焦镜头可以把焦矩在相当大的范围内连续改变的镜头。一个变焦镜头可以代替多个固定焦矩镜头,但效果很可能比不上。
- Focal length The distance between the centre of a lens and its principal focus. 镜头中心与其主焦点的距离。
- The solid tunable focal length microlens in our study is still a prototype. 本研究所提出之固态调焦透镜兼具微小化、积体化、可单一或阵列使用、及系统整合性高等优点。
- Here the combinations of Testcharts and measuring objectives for different focal length ranges are preset. 在这里预置不同焦距范围的测量物镜与测试图表之间的组合。
- Spot diameters of just a few thousands of an inch can readily be attained with convenient short focal length lenses. 用普通的短焦距透镜不难得到直径只有几十微米的光点。
- The focal length of the conelensing lens should be such that the image of the source just fills the projecting lens. 聚光透镜的焦距应使光源的像正好照满放映透镜。
- As a result, the focal lengths in these planes will be different. 结果,这两个平面内的焦距将不同。
- A unit of measurement of the refractive power of lenses equal to the reciprocal of the focal length measured in meters. 屈光度透镜或棱镜折光率的一种量度,等于以米计算焦距之倒数
- In taking a picture, the shutter,the focal length and the other things must be adjusted as the case may be. 在拍照过程中,快门、焦距等等必须按实际情况加以调整。
- In order to be able to evaluate a large focal length range, different converter lenses must be used. 为了能够计算较大的焦距范围,根据焦距的大小必须使用不同的转换透镜。