I came across this interesting piece of time well spent at a yard sale some years ago. The take was not shot in B&W or converted post production. The piece is constructed by individually cut pieces of Fresnel Lens and arranged in a double Fibonacci Sequence - Yikes! I cropped out the frame (It was ugly.). What you see is the entire piece sans frame. The owner told me that the piece is framed between two pieces of glass so light can pass through. Bet it looks fantastic with golden hour light shinning through?... Bob