Re: [photo-3d] Stereo Fly

[Herbert C Maxey <bmaxey1@xxxxxxxx>]

>>A curious question is why a fly was chosen as subject,
>>it seems that some children were afraid of such a large
>>insect (but the fly is only one of the targets and 
>>stereo butterfly test also exists...).

According to the manufacturer, it seems that a fly is universally known
and recognized by children, and the child or adult is asked to grab the
tip of the wing. If their fingers try to grab the wing tip about 2 or so
inches above the picture, it is assumed they have stereo vision. If they
simply touch the print, there is a problem.

I think it is an interesting test.

Bob