Camera lenses have two general attributes: f-stop and focal length.

照相机镜头有两项一般属性：f制光圈和焦距。

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These tags, called EXIF metadata, specify things like the exposure and f-stop settings, gps information if your camera has it, and, of course, the time and date the photo was taken.

这些标记称为EXIF元数据，是为了说明照片的曝光度和光圈设定，有的相机还会显示GPS信息，当然，还有拍照的时间和日期。

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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。

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His favourite piece of tech is his F-Stop Satori EXP, a rucksack he uses when carrying his gear to remote locations.

BBC: Pro photographers reveal their top travel gear

Washington Park is located at Fifth Avenue and Third Street in Park Slope (nearest subway stop, F to Fourth Avenue).

WSJ: A guide to exploring Jackie Robinson's Brooklyn

The statue is located outside MCU Park, where the minor league Cyclones team plays at Surf Avenue and West 17th Street, near the last stop on the D, F, N or Q train to Coney Island.

WSJ: A guide to exploring Jackie Robinson's Brooklyn