We flew to Aizu, Japanm to find out how some of the world’s best and most popular lenses are made at Sigma's one and only factory. advertisement. Digital Camera World.

Headlights are the most important things to keep clean on your car. Not only do these powerful beams let you see the road, they let other motorists see you. Most headlight lenses are made of ...

These lenses are made of hard plastic. While most contact lenses will last for the intended duration, some factors may shorten their lifespan. For instance, dust and smoke may cling to your lenses ...