calculators, tables, and reference materials useful for photography.
Finding the focal length of a lens This is a calculator that will help you in finding the focal length of a photographic lens. The method is about focusing on one or more objects at different distances. Each time, you write down 3 measurements. Only one measurement could do. But the idea is that “averaging” several instances it…
Angle of View based on image circle and focal length Result is presented in degrees.
Front raise and horizon line For a given lens and given film or sensor format, this simulator shows how much it is possible a front raise and where the horizon line will end up in the final picture. Focusing is assumed to be at, or closer to, infinity, a frequently used condition for a landscape….
Image circle from angle of view and focal length Result is presented with the same unit you used for focal length.
Use this calculator to find out what is the minimum image circle your lens must provide in order to cover a certain film format.
Lens/subject/format – an online simulator How it works: You enter the focal length of your lens, film or digital sensor dimensions and the approximate size of your subject. The simulator shows in value and graphically the following corresponding information: The calculation is made in order to fill the frame proportionally. If subject proportions do not correspond to…