Douglas Software

World-leading Tools for the Serious Photographer.

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