I’ve been wearing contact lenses for over two decades; to find the best contact lenses for different vision needs, I tapped into my own experience and also relied on the expert insights of ...

With the best lenses for iPhone and Android phones, you can gain a whole new perspective in your smartphone photography and videography. Smartphone camera arrays are undoubtedly improving, especially ...

Here's what you should and shouldn't do with your contact lenses to minimize the risk of infection and discomfort. Are contacts safe? Yes -- but only if used correctly. From topping up old contact ...

If you don't have gray eyes but they appear to become more gray over time, it may be due to a cataract. This is a clouding of the eye's lens. Cataracts can affect your vision and may need to be ...

There are many different types of lenses for various lifestyle activities. That depends on whether your eyes change or not. Call your eye doctor when you notice a difference. The key is to get eye ...

At Mobile World Congress 2025, Xiaomi showcased a Modular Optical System (MOS) that magnetically attaches a lens to a custom Xiaomi 15. It's like a Moto Mod, but with a full-fledged, working ...

Meet the Realme interchangeable lens concept - a Realme smartphone that can mount Leica M lenses on its back! Before we go mounting lenses on, let's look at the underlying phone. This is a Realme ...

\(power \ of \ a \ lens \ (D) = \frac{1}{focal \ length \ (m)}\) A lens has a power of -3.33 dioptres. Calculate the focal length and state what type of lens it is.

Shoot sports? You'll need one of the best lenses for sports photography – here are the best buys for Canon, Sony, L-mount, Nikon, Fujifilm, Pentax and Micro Four Thirds shooters I've long been into ...

The annual mobile trade show in Barcelona kicks off today, but just ahead of the event Xiaomi has shown off a prototype camera lens. I am, apparently, one of only two media members to get hands on ...

Realme has revealed its Interchangeable Lens Concept phone at MWC 2025. This phone has a one-inch camera sensor that can be paired with your existing Leica camera lenses. Realme’s phone also ...

Albert Einstein, in 1905, presented the revolutionary idea of light quanta of energy which equals ħw, where ħ is reduced Planck's constant. There is plenty of experimental evidence on magnetic ...