In double vision, 2 quarters does not make a perfect half, if you try to get it, it does not work, because, there is two images!, in single vision (normal vision) 2 quarters make a perfect half because you are looking normal, you are seeing one image!

rich1.0In double vision, 2 quarters does not make a perfect half, if you try to get it, it does not work, because, there is two images!, in single vision (normal vision) 2 quarters make a perfect half because you are looking normal, you are seeing one image!quaHohttps://clara.io/user/quaHohttps://clara.ioClara.iohttps://clara.io/api/scenes/406a556a-cd51-4be7-ab2a-d2ffeea3bed8/thumbnail.jpg640480640480<iframe width="640" height="480" src="https://clara.io/embed/406a556a-cd51-4be7-ab2a-d2ffeea3bed8" allowfullscreen style="border:0;"></iframe>