Douglas Software

Sun and Moon Calculator
Trial versionDisplay solar and lunar data with many other features both for the photographer and the astronomer.
Windows
Douglas Photo Calculator
PaidDouglas Photo Calculator provides a versatile, easy-to-use solution for amateur and professional photographers alike in English, French, German,...
iOS
Photo Calculator
Trial versionAchieve high fidelity photography with automatic formulae calculation.
MacDouglas Photo Calculator
Trial versionCalculate depth of field and many other photography related parameters.
Windows