查询词典 telephoto lens

The lens system adopted the Reverse-Telephoto configuration which had an effective focal length of 5.5mm,an F-number of F/4 ,a field of view of 175°,and a working wavelength in the range of visible spectrum.

系统焦距为5.5mm，相对孔径为1/4，全视场角175°，光谱范围为可见光波段，采用了3组10片的反远距型结构。

Using the telephoto end of the zoom lens introduces a drop in lumen output of 22%.

使用变焦镜头的远摄端引入的22％流明输出下降。

As with all long zoom lenses, you lose lumen output as you move toward the telephoto end of the lens.

如同所有的长变焦镜头，你失去的流明输出，你对镜头的远摄端移动。

The high quality, medium telephoto macro lens, has been developed for photographers who demand the highest level of optical quality.

高品质，中远摄微距镜头，已经开发了摄影师的需求谁的光学质量的最高水平。

Is the photo effective because it is compressed with a telephoto, or opened up with a wide-angle lens?

这张照片精彩是因为使用了长焦镜头，还是因为使用了广角镜头？

What's more, only 18% of maximum light output is lost between the wide and telephoto ends of the zoom lens, which is slightly better than average (around 20%).

更重要的是，只有18％的最大光输出之间的变焦镜头，略高于平均水平（约20％）更广泛和远摄端丢失。

Realistically, we would recommend that you try to avoid the maximum telephoto end of the zoom lens for this reason.

实际上，我们建议您尽量避免变焦为此镜头的最大远摄端。

The twin-lens kit gives first-time users loads of flexibility too, with an excellent Zuiko 14-45mm f/3.5-5.6 wide zoom lens and a Zuiko 40-150mm f/4.5-5.6 telephoto zoom lens.

双镜头套件，让第一次使用的用户负载的灵活性，也与一个很好的zuiko 14 -四十五毫米f/3.5-5.6广泛的变焦镜头和一个zuiko 40 - 150毫米f/4.5-5.6镜头的远摄变焦镜头。

Canon, Nikon, and other brands have a huge auto-focus lens group, from ultra-wide-angle to ultra-telephoto, from the macro to the soft focus, users can choose according to their own needs matching lens.

佳能、尼康等品牌都拥有庞大的自动对焦镜头群，从超广角到超长焦，从微距到柔焦，用户可以根据自己的需求选择配套镜头。

At the same time, the development of the lens to the series, a few millimeters from the focal length of the fisheye lens to the focal length of 2 meters of super-long telephoto, and with perspective adjustment, zoom away from the emblem, such as night-vision camera lens.

同时，镜头向系列化发展，由焦距几毫米的鱼眼镜头到焦距长达2米的超摄远镜头，并有了透视调整、变焦徽距、夜视等摄影镜头。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。