Optical effect on Spider Web
Optical effects produce beautiful vivid colours on the web strands. Sunlight falling on the web strands produces these effects. The colours are caused by interference of the rays scattered by the arrays of tiny sticky droplets on the catching threads. These can be captured using a mobile phone and better detailed ones using a macro lens. Adjusting the angles produces creative, beautiful shots. Having the spider in the web produces excellent captures. If it's difficult to have sunlight on the web, an led lamp can be used to produce the same effect.
Video shows how optical effects varies varying the angle of capture.