The K-mount Pentax 50mm f/1.7 has been around since the late 1970s and remained in production until around 1984. The lens is ...

Spotted: Hollywood's leading men sported shades with transparent lenses on and off the red carpet at the Cannes Film Festival. By Carol McColgin Contributing Editor Pitt was the essence of cool when ...

Nobody likes fogged-up glasses or goggles, and unfortunately most anti-fog solutions need to be frequently reapplied. A new treatment, however, could make polycarbonate lenses permanently fog-free … ...