A periscope camera lens is a lens assembly that uses prisms, mirrors, or a combination of them to redirect light before it reaches the camera sensor. In doing so, it magnifies the image more so than ...

What is myopia and why is it increasing? Myopia, commonly called nearsightedness, is when people can clearly see objects at close range but struggle with distant objects, which often appear blurry or ...

Choosing new glasses involves lots of factors, including the type of lens you will purchase. If you have a strong prescription, you might consider aspheric lenses. There are many types of lenses for ...

Documentary photographer Ian Howorth has travelled the globe and tested out countless cameras along the way. He shares his tips for choosing cameras, lenses and accessories for the perfect shot. Ian ...