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203.2 x 10 = 2032mm。

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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。

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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。

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