To shine a light on Florida’s lighthouses! His 23-year Coast Guard career evolved into a passionate hobby researching and ...

For our DxOMark lens reviews, we evaluate the performance of interchangeable lenses for cameras equipped with sensors that can capture images in RAW format. In this article, we explain how we test for ...

Why I'm drawn to pairing vintage Hasselblad, Mamiya, and Pentax 67 lenses with my modern Fujifilm medium format camera ...

For over 100 years the same Fresnel lens has been illuminating the land and sea surrounding the Plum Island Lighthouse.

The design of a linear microstrip array and Fresnel lens combination as a potential candidate for Ka-band satellite communications is presented. Medium-power amplifiers are distributed within the ...

We all know antique or vintage pieces can make a home feel unique but finding those rare treasures often takes time and patience. That's why we’ve done the hard work for you and rounded up the best ...

Conical in shape Fresnel zone (CFZ) lens of flat dielectric rings is introduced and studied in this research. It is contrasted to a plane Fresnel zone (PFZ) lens, a CFZ lens of conical rings and a ...

High-performance, ultracompact lenses are needed in the quest to miniaturize optical systems. It now seems that carefully engineered subwavelength gratings can function as almost perfect mirrors ...

Brenda Yenke's weekly antiques column for the Sun Newspaper.