FOV Calc app
Resolve Optics has developed an easy-to-use iPhone application (App) that simplifies lens field of view (FOV) calculations. Perfect for optics professionals and camera enthusiasts, all the user needs to know is the sensor format and its focal length and the App calculates the FOV.
Available in two versions, the FOV Calc App allows users to work out what focal length lens are required or to calculate the field of view provided by a lens of a given focal length at a known distance or infinity.
FOV Calc Lite is a free version of the App with eight commonly used sensor formats pre-installed. FOV Calc, the full version of the App, has eight pre-installed formats, but also provides the option of editing, adding, deleting and saving sensor formats, enabling the user to build their own sensor format database.