As we were sitting at an outdoor cafe waiting for our coffee I placed my spectacles on the slatted, wooden table. The sun threw sharp shadows and bright patches from the lenses and frames. I moved the glasses around to get a better composition then took the shot with my iPhone. Taking a photograph of a subject - whatever it is - increases our understanding of it as we give the motionless image more attention. I had never before noticed the multiple, stacked lines seen on the outer part of the left lens in this photograph. But now I have I notice I can readily position my spectacles to make it visible. What I can't do, however, is explain why it happens.
photo © T. Boughen Camera: iPhone
