Universal Stereoscopic Adapter

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Quick Start Guide




Universal Stereoscopic Adapter was named jpsBrown to credit the inventor Theodore Brown. It is a mirror type optical beam splitter that divides a camera view angle into two parallel views.

To accommodate wide range of cameras the following features were added to the original Brown's invention:

  • adjustable view angle
  • beam splitter mirror vertical centering
  • wide mounting table with elevation and roll adjustment
  • camera's flash redirection mirror assembly
  • tripod socket

With new hardware features and software for removing camera's lens distortion, jpsBrown can capture stereoscopic images that are compatible with dual camera stereoscopic systems.




Camera mounting

Variety of Still or Motion Cameras mount on the adapters table using single tripod screw.

The tripod socket mounting screw, limiting blocks and hex tool.


Select appropriate screw slot and attach the camera.


Align camera's lens axis in the center of the table.


Align camera's lens axis in the center of the mirror assembly.


If flash needed, align camera's flash redirection mirror assembly.



Capturing 3D images

When shooting still or moving images first adjust view angle of the main mirror assembly to obtain parallel views using the slider.

Move the slider knob to adjust view angle.


To verify parallel views, point the adapter at far away object and by horizontally rotating, center it's image in left view of the viewfinder. If views are aligned than the right image of the object should also be in the center of the right view in the viewfinder.



Formatting and perfecting your work

Images captured with your camera and Stereoscopic Adapter jpsBrown can be viewed on any type of media using free viewing method. The method requires the viewer to converged his eyes horizontally in order to superimpose let image onto right. The free viewing method has limitation and those depend on physical abilities of and individual person. The main limitations of this method are: strain on the eye muscles and small angular view. To remove those limitation a mirror type stereoscope like jpsVisor or PokeScope can be used. For viewing stereoscopic images using other methods the images must first be formatted. Using LCD shutter glasses frame sequential method require that images are formatted into jepeg stereo format using software like jpsViewer or StereoPhoto Maker. Viewing using Anaglyph Glasses requires formatting images into Anaglyph format and that can be done using the same software programs.

To make a perfect stereoscopic images without vertical disparities the lens distortions must be corrected.

Captured image has lens distortions and it is mirrored horizontally.


Vertical disparities removed by applying lens distortion correction.


Waist cropped out and mirror reversed.




Viewing your work

Perfected and formatted images can be transferred to variety of media type. The highest quality viewing media is still the medium format slide. It can be viewed using hand held visor or projected onto slide projection screen. jpsVisor can be used to get the highest quality view on the projection screen. jpsProjector adapter can be employed for polarized image viewing method.



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