Douglas Photo Calculator

Douglas Photo Calculator provides a versatile, easy-to-use solution for amateur and professional photographers alike in English, French, German, Italian and Spanish. It allows for a choice of camera formats from digital (including digital backs) to conventional film cameras with the database regularly updated.
Douglas Photo Calculator automates the calculation of key metrics for photographers in pursuit of consistent and creative results and takes the uncertainty out of high quality photography.
This innovative software provides the capability to make crucial optical calculations quickly and easily. We're talking here about calculating, amongst other things, depth of field, hyperfocal distance, angle of view, image area and diffraction.
Depth of Field – Making sure that the nearest and furthest parts of your subject are in acceptable focus is vital. Douglas Photo Calculator enables you to control a variety of criteria – including the often-misunderstood 'circle of confusion'!
Hyperfocal Distance – With a just a few clicks, Douglas Photo Calculator will work out the distance from your camera lens to the nearest part of the subject that provides an optimal level of focus.
Angle of View – The focal length of a lens will determine its angle of view in conjunction with a given film format size. Douglas Photo Calculator will calculate the optical equations for ANY LENS with an 'angle of view' between 1 and 179 degrees.
Diffraction – Effectively limits the lens to be stopped down below a certain point. This software will work out the smallest aperture that can be used to avoid distortion.
A comprehensive Help file is included with Douglas Photo Calculator and there are numerous examples to show users how to make the very best of this versatile and feature rich software.