Taken this evening as the sun was setting. The dancing light on the branches really caught my eye. Black and white seemed the best treatment of this photo.

I shot the photo below through our glass front door looking southeast. I used a very large aperture and focused on the far horizon. Those dark lines are not shadows. They are the bars of our stair railing. And yet . . . look closely. You can see right through them. The effect is even more noticeable if you click on the photo to see the larger image. If there is someone who can explain this illusion to me, I’d really appreciate it. Does it have to do with bending light?