As a DSLR lens with a longer focal length and a wide aperture, the Pentax ★85mm F1.4ED is no lightweight. The lens weighs ...

As with other brands, Canon's lenses feature many letters and acronyms in the lens names. Seeing something like Canon RF ...

Due to an embargo, I can't share certain details or any opinions about the Oppo Find X9 or Find X9 Pro in this piece - we'll have more details on the new Oppo flagships as soon as we're able to share ...

Sir Isaac Newton once wrote, in what must be one of the most oft-quoted lines in the history of science, "If I have seen further it is by standing upon the shoulders of giants." Well, any of us who ...

This engineering exam, which is a gateway to some of the premium engineering colleges such as IITs, NITs and more, cover subjects such as Physics, Chemistry and Mathematics.

Abstract: A hemispherical Luneburg lens (LL) with the focal plane near lens surface is proposed using a transformation optics (TO)-based metamaterial (MTM) lens (metalens) concept for wide-angle ...

Abstract: This contribution presents the design of a metallic geodesic lens antenna integrated with a conformal plano-convex lens and a conformed anisotropic dielectric polarizer at its aperture, ...

What are the best fighting games? It might not seem like it these days, but it wasn't until the late '00s that PC users were finally treated to the latest fighting games. It's fair to say the genre is ...

The lens focuses light and images onto the retina to help you see clearly. As you age, your lens may lose flexibility and become cloudy, leading to presbyopia and cataracts. The lens is a curved ...

Just like people, cars come in all shapes and sizes. Each vehicle type has its own set of dimensions that make it unique from others. As you start car shopping, you may be curious about the average ...

Since 1962, economists have used the "gravity equation" in international trade to explain empirically bilateral international trade flows, and have since more recently adopted the gravity model to ...

Thanks to the version 6.0 (or later) software update, newly developed Real-time Eye AF for Animals is now available. A game-changing image sensor from Sony makes conventional camera mechanisms ...