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BaseCalc BaseCalc

A free pocket-sized stereo base calculator.

BaseCalc is a small calculator that enables the stereophotographer to compute, on the field, the appropriate stereo base.
  The following formula is used (derived from the Bercovitz formula):

  • Base: stereo base, spacing between the lenses or between the two successive positions of a single camera (cha-cha mode).
  • MAOFD: Maximum Acceptable On Film Deviation, related to the highest confortable parallax angle, for 35mm film the value is generally between 1.2 and 1.5 mm.
  • Focal Length: camera's focal length (a multiplier value can be selected to compensate for the smaller focal lengths used on digital cameras).
  • dMin: distance of the nearest object (foreground distance).
  • dMax: distance of the farthest object (background distance).
Note: the formula used is valid when dMin is much larger than the Focal Length, thus it is not correct for macro-stereophotography.

Clicking one of the Calc ! buttons will compute the corresponding variable using the values entered for the other four variables.
Metric system or imperial system can be used.
Current settings can be saved for later use (see the File menu).
Version 1.1.2 (March 2009): Display of the Base / dMin ratio.
Version 1.2 (June 2016): User interface updated for newer devices.

PocketPC screenshot

Android screenshot
On-line version using javascript:

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BaseCalc will run on Windows Mobile / PocketPC devices (with .Net Framework 1.1 or better installed) and will also work on a regular PC with Microsoft Windows XP or Vista.
The Android version will need an Android device (at least with system v1.6)
Pocket PC: Extract the file from the zip archive and place them in a new folder created on the PocketPC. For more ease of use, one can create a shortcut to the application in the "Start" menu.
Android: Download and install the "apk" file below or install it from the Android Market.
Click here to download BaseCalc PocketPC v1.2 (25 KB)
Click here to download BaseCalc Android v1.2 (1.2 MB)

Some links on stereo base calculation:

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