Jul 10, 2025 Jul 10, 2025 Updated Jul 22, 2025 PLUM ISLAND — For over 100 years the same Fresnel lens has been illuminating the land and sea surrounding the Plum Island Lighthouse. Now that the ...

The film application is the first of many steps toward increasing the safety of the rare First Order Fresnel lens, which is located on San Luis Obispo County property adjacent to Cambria’s ...