Random Dot Stereogram Card Set

Bernell’s BCFSET2 is a set of random dot stereograms, which can be used with virtually any stereoscope. These stereograms have been designed so that one eye sees a picture with a slightly different set of random dots that the picture seen by the other eye. The disparity in the dots causes the pattern to stand out from the random dot background; but only if both eyes are working together.

Features 12 sets of random dot figures for use with the Variable Prismatic Stereoscope/Cheiroscope, Bernell Variable Prismatic Trainer and Bernell-O-Scope (or other stereoscopes). Provides variety and added difficulty to the orthoptic techniques.