Researchers have shown that consumer-grade 3D printers and low-cost materials can be used to produce multi-element optical ...

In the United States alone, about 45 million people wear contact lenses to correct their vision. While not as popular as traditional glasses, contact lenses have distinct advantages for eye health and ...

A camera lens filter is pretty much what you’d expect: it’s a physical piece of glass that attaches to your camera’s lens, filters the light before it reaches the sensor and, typically, has an effect ...

So, you’ve decided to upgrade your camera from a point-and-shoot to an interchangeable lens model. It probably means you’re looking to do more with your photography and you want a camera that can ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Go shopping for a smartphone today and one of the features you’ll ...

In antiquity, we see examples of magnifying crystals formed into a biconvex shape as early as the 7th century BC. Whether the people of that period used them either for fire-starting purposes or ...

On a late night in February 2011, two Princeton University researchers packed a small object into a box and set it out for the morning mail. The engineers had spent four years developing a new type of ...

Which Canon fisheye lens is best? When seeking a lens that delivers nontraditional photographs and fits your Canon DSLR camera, a Canon fisheye lens is a great tool. This type of lens distorts the ...

“In optics, there was a problem,” says Amit Agrawal, a physicist at the National Institute of Standards and Technology in Gaithersburg, Md. If you wanted to focus a single lens to two different points ...