There are a couple of schools of thought when it comes to the perfect portrait lens. An 85mm gives a flattering perspective and enables close-up upper body shots from a discrete shooting distance, ...

Here’s how it works. The best iPhone lenses can quickly boost the quality of your smartphone photos and videos. Both the new iPhone 16 Pro models feature 5x telephoto lenses, while older iPhone ...

Want to preserve the planetary parade or capture the Lynx constellation? The best lenses for astrophotography can help you take beautiful, breathtaking images of the night sky. If you're stepping ...

A new proof has brought mathematicians one step closer to understanding the hidden order of those “atoms of arithmetic,” the prime numbers. The primes—numbers that are only divisible by ...

The two lenses are mostly identical ... Naturally, there is a difference in filter size as well. The Nikon Z-mount model features a 52mm filter thread, while the Sony E-mount uses a 49mm filter. The ...

Finding a good movie to watch on Amazon Prime Video can be difficult to say the least. While Amazon’s robust library of titles is available to every Amazon Prime subscriber, they don’t exactly ...

Different DSLR cameras tick different boxes. Our top pick is a winner for beginners: the Nikon D3500 is easy to use and produces excellent stills. It’s no longer in production, but it can still ...

One of my favorite anecdotes about prime numbers concerns Alexander Grothendieck, who was among the most brilliant mathematicians of the 20th century. According to one account, he was once asked ...

Paper-thin optical lenses simple enough to mass produce like microchips could enable a new generation of compact optical devices. Researchers have fabricated and tested flat lenses called Fresnel ...

This top-quality prime has a 12-bladed aperture ... but you'll have to focus manually The full-frame lens covers a full-size image circle, and the optical design has been reengineered and optimized ...

On the blink: you should have an eye check-up at least every two years Contact lens shopping can be an expensive enterprise, and many shy away from finding cheaper options in the fear they can be ...