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A one-page calculator to tell each DoF in differect apertures.
This program is designed for phtographer who need to know different DoF in each apertures under fixed environment factors.
It is a one-page calculator. Just input the film/sensor size and focal length of lens, DoF of each different aperture will be calculated and presentated.
A Roman Numeral Calculator. Ratio Mercatoris (formerly Ratiocinator) is a calculator program using Roman Numerals. Also, has built-in Financial and Scientific (Ancient Rome) functions.