Stereo Butterfly SO-005

Test and evaluate Random dot stereo depth perception for both Gross Stereopsis (2500 to 1200 sec of arc)and fine Depth preception.

The test includes:

1. Graded circle test (800 to 40 sec of arc)
2. Animal test for children (400 to 100 sec of arc)
3. 1 pair of standard 3-D viewers