Stereo Butterfly SO-005 from Stereo Optical Company, Inc.

Test and Evaluate Random Dot Stereo Depth Perception for Both Gross Stereopsis (2500 to 1200 sec of arc) and Fine Depth Perception.

The Test Includes:

Graded Circle Test (800 to 40 sec of arc)

An Animal Test for Children (400 to 100 sec of arc)

1 Pair of Standard 3-D Viewers