Gone are the days when you saw grainy and dark images on a 35 mm screen. (anhkhoi.blogspot.ru)
The brain combines the bright, blurry image from one eye with the sharp, dark image from the other to create an image that is both bright and sharp. (discovermagazine.com)
However, darker images look a lot better than brighter ones, which actually tells us a lot about its cause. (gizmodo.com)