Naruto, then 3 years old, came up and picked up one of his cam­eras and start­ed look­ing at it. And he made the con­nec­tion… By Mr. Slater’s own admis­sion he made the con­nec­tion between push­ing the shut­ter release but­ton and the change to his reflec­tion in the lens when the aper­ture opened and closed.