Our StereoBrain Calculator takes the headache out of calculating the main parameters of stereoscopic photography. Running on Windows and Mac-based systems, all it requires is input of simple data such as lens focal length, camera chip size and distance to subject along with a few other details through its user-friendly interface and the calculator will instantly provide details of the amount of parallax in the scene you are planning and a suggestion for the 'correct' interaxtial distance required between the cameras. We offer a free trial of this software.