Optical effects, the interplay of light and colour in Nature, are everywhere.
Atoptics Highlights & Optics Picture of the Day feature and explore these effects with their sister site "Atmospheric Optics".
Atoptics Highlights/OPOD's format is a magnificent image with an accurate scientific description and explanation that often expands into other topics.
It is a rare privilege to get your images from around the world, to write about them and share them with readers.
Sorry, I am not taking images or enquiries right now.