{"type":"photo","width":640,"height":960,"url":"https://www.tomcarrollphotography.com/img/s/v-10/p343715177-6.jpg","version":"1.0","title":"David Stevenson used this Fresnel lens in one of his Scottish lighthouses, now in the National Museum of Scotland.","author_name":"Tom Carroll Photography","author_url":"https://www.tomcarrollphotography.com/"}