For example, the focal length of an 8" (203.2mm) aperture with a focal ratio of f/10 would be 203.2 x 10 = 2032mm.
比如，孔径为8英寸(203.2mm)，焦比为f/10的透镜，其焦距为203.2x 10 = 2032mm。
EOTS is part of the F-35 Electro-Optical Sensor System that consists of Northrop Grumman's Distributed Aperture System and EOTS.
F - 35光电传感器系统由EOTS系统和诺斯罗普·格鲁门公司的分布式孔径系统组成。
Portrait mode chooses a large aperture (a small 'f' number) which will make the depth of field (the amount of your shot in focus) smaller.
人像模式用一个大光圈(f值小)，而让景深(清晰对焦的那部分)变小。
The f-stop, otherwise known as the aperture, determines your depth of field (the area in focus) and how much light can pass through the lens to reach the sensor.
f制光圈(或称光圈)决定相机的景深(对焦区域)以及有多少光能通过镜头到达传感器。
The combination of telephoto capabilities and an f/2.8 aperture throughout the zoom range up to 500mm makes this a great lens for wildlife, sports and for you stargazers, astrophotography.
远摄镜头的性能加上f/2.8的光圈，再加上最长500mm的长焦端，使该镜头适合拍摄野生动物和体育赛事，也是天文爱好者进行天文摄影的绝佳镜头。
Aperture sizes are expressed in "f-stops."
光圈的大小用“f”来代表。
System and method for optically imaging objects on a detection device by means of a pinhole aperture. F.
FALKDieter：用于通过针孔光圈将物体光学成像到检测装置上的系统和方法。
The aperture size (area of the aperture) of a lens could be calculated from focal length and the correspondent f-number.
光圈孔的大小，可从镜头的焦距与焦距比数中计算出来。
The aperture size (area of the aperture) of a lens could be calculated from focal length and the correspondent f-number.
光圈孔的大小，可从镜头的焦距与焦距比数中计算出来。
应用推荐