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 zone ...

Venus Optics, makers of Laowa lenses, has built up quite a reputation for probe lenses: long macro lenses that can help you ...

Colourful frames, plant-friendly materials, and beloved characters – OT takes a look at what’s new in frames for young faces ...

But the lenses have a slight film ... materials, color choices, brand reputation, third-party reviews, and prices. Three panelists tested each pair while working on their laptops and scrolling ...

We tried 23 online eyeglass retailers across various budgets and style offerings, and found four we recommend as the best ...

General Musa reviewed a cache of locally made arms and ammunition that were seized from the areas of operation by troops and expressed concerns on engaging the skills of manufacturers of such arms ...

Each of the lenses featured below has been reviewed by our expert team in real-world conditions, to assess everything from build quality to optical performance. We don’t play favorites, ...

Dinion2X Day/Night IP cameras are progressive scan CCD cameras. They can tri-stream video simultaneously - on two H.264 streams and one M-JPEG stream. Equipped with 20-bit DSP with 2X-dynamic, they ...

Dinion IP cameras are progressive scan CCD color cameras. They can tri-stream video simultaneously - on two H.264 streams and one M-JPEG stream. Features such as multicasting, internet streaming and ...

If your doctor prescribed a particular brand of contacts, it's best to stick with a retailer that offers that brand.