现场工具，是一个高效的，易于使用的领域深入的计算器，在外地工作的摄影师。只需使用几笔，你可以快速计算超焦距近焦和远焦距离，所有从一个单一的屏幕上。应用程序设置也有单点触摸。其特点包括：
•大结果显示，易于阅读
•开关距离型 - 超焦距，已接近上限，远远的限制，并结合近/远的限制 - 单点触摸
•滑块调整焦距，光圈和对焦距离
•配置多台摄像机和镜头，并在它们之间进行切换，只是几笔
•米，英尺，英尺和英寸的结果
Field Tools (Depth of Field, DoF)
Field Tools is an efficient, easy to use depth of field calculator for photographers working in the field. Using just a few touches, you can quickly calculate hyperfocal, near focus and far focus distances, all from a single screen. App settings are also a single touch away. Features include:
•Large, easy to read result display
•Switch distance type - hyperfocal, near limit, far limit and combined near/far limits - with a single touch
•Sliders for adjusting focal length, aperture and focus distance
•Configure multiple cameras and lenses and switch between them with just a few touches
•Results in meters, feet or feet and inches